efl/src/lib/eina/eina_lock.c

283 lines
7.2 KiB
C
Raw Normal View History

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include "eina_config.h"
#include "Eina.h"
#ifdef EINA_HAVE_OSX_SPINLOCK
/*
* macOS 10.12 introduced the os_unfair_lock API which
* deprecates OSSpinLock, while keeping compatible.
*
* The Spinlock API is not inlined because it would imply including
* stdbool.h, which is not wanted: it would introduce new macros,
* and break compilation of existing programs.
*/
2017-07-17 05:04:30 -07:00
# if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
# include <os/lock.h>
# define SPINLOCK_GET(LCK) ((os_unfair_lock_t)(LCK))
# else
# include <libkern/OSAtomic.h>
# define SPINLOCK_GET(LCK) ((OSSpinLock *)(LCK))
# define os_unfair_lock_lock(LCK) OSSpinLockLock(LCK)
# define os_unfair_lock_unlock(LCK) OSSpinLockUnlock(LCK)
# define os_unfair_lock_trylock(LCK) OSSpinLockTry(LCK)
# endif
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Lock_Result
_eina_spinlock_macos_take(Eina_Spinlock *spinlock)
{
os_unfair_lock_lock(SPINLOCK_GET(spinlock));
return EINA_LOCK_SUCCEED;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Lock_Result
_eina_spinlock_macos_take_try(Eina_Spinlock *spinlock)
{
return (os_unfair_lock_trylock(SPINLOCK_GET(spinlock)) == true)
? EINA_LOCK_SUCCEED
: EINA_LOCK_FAIL;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Lock_Result
_eina_spinlock_macos_release(Eina_Spinlock *spinlock)
{
os_unfair_lock_unlock(SPINLOCK_GET(spinlock));
return EINA_LOCK_SUCCEED;
}
#endif /* EINA_HAVE_OSX_SPINLOCK */
Eina_Bool fork_resetting;
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_lock_debug_abort(int err, const char *fn, const volatile void *ptr)
{
if (fork_resetting) return;
fprintf(stderr, "EINA ERROR: '%s' on %s %p\n", strerror(err), fn, ptr);
#ifdef EINA_HAVE_DEBUG_THREADS
abort();
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_lock_debug_deadlock(const char *fn, const volatile void *ptr)
{
fprintf(stderr, "EINA ERROR: DEADLOCK on %s %p\n", fn, ptr);
#ifdef EINA_HAVE_DEBUG_THREADS
abort();
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
eina_lock_debug(const Eina_Lock *mutex)
{
#ifdef EINA_HAVE_DEBUG_THREADS
fprintf(stderr, "EINA ERROR: DEADLOCK on lock %p, locked: %i, by %ti\n",
mutex, (int)mutex->locked, (ptrdiff_t)mutex->lock_thread_id);
backtrace_symbols_fd((void **)mutex->lock_bt, mutex->lock_bt_num, 1);
#else
fprintf(stderr, "EINA ERROR: DEADLOCK on lock %p\n", mutex);
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_lock_new(Eina_Lock *mutex, Eina_Bool recursive)
{
pthread_mutexattr_t attr;
Eina_Bool ok = EINA_FALSE;
if (pthread_mutexattr_init(&attr) != 0) return EINA_FALSE;
if (recursive)
{
if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0) goto fail_release;
}
#ifdef EINA_HAVE_DEBUG_THREADS
else if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK) != 0) goto fail_release;
#endif
if (pthread_mutex_init(&(mutex->mutex), &attr) != 0) goto fail_release;
ok = EINA_TRUE;
fail_release:
pthread_mutexattr_destroy(&attr);
return ok;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_lock_free(Eina_Lock *mutex)
{
int ok;
ok = pthread_mutex_destroy(&(mutex->mutex));
if (ok != 0) EINA_LOCK_ABORT_DEBUG(ok, mutex_destroy, mutex);
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_condition_new(Eina_Condition *cond, Eina_Lock *mutex)
{
pthread_condattr_t attr;
int ok;
#ifdef EINA_HAVE_DEBUG_THREADS
assert(mutex != NULL);
#endif
cond->lock = mutex;
pthread_condattr_init(&attr);
/* OSX doesn't provide clockid_t or clock_gettime. */
#if defined(__clockid_t_defined)
cond->clkid = (clockid_t) 0;
/* We try here to chose the best clock for cond_timedwait */
# if defined(CLOCK_MONOTONIC_RAW)
if (!pthread_condattr_setclock(&attr, CLOCK_MONOTONIC_RAW))
cond->clkid = CLOCK_MONOTONIC_RAW;
# endif
# if defined(CLOCK_MONOTONIC)
if (!cond->clkid && !pthread_condattr_setclock(&attr, CLOCK_MONOTONIC))
cond->clkid = CLOCK_MONOTONIC;
# endif
# if defined(CLOCK_REALTIME)
if (!cond->clkid && !pthread_condattr_setclock(&attr, CLOCK_REALTIME))
cond->clkid = CLOCK_REALTIME;
# endif
#endif
ok = pthread_cond_init(&cond->condition, &attr);
if (ok != 0)
{
pthread_condattr_destroy(&attr);
#ifdef EINA_HAVE_DEBUG_THREADS
if (ok == EBUSY)
fprintf(stderr, "EINA ERROR: eina_condition_new on already initialized Eina_Condition\n");
#endif
return EINA_FALSE;
}
pthread_condattr_destroy(&attr);
return EINA_TRUE;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_condition_free(Eina_Condition *cond)
{
pthread_cond_destroy(&(cond->condition));
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_rwlock_new(Eina_RWLock *mutex)
{
int ok;
ok = pthread_rwlock_init(&(mutex->mutex), NULL);
if (ok == 0) return EINA_TRUE;
else if ((ok == EAGAIN) || (ok == ENOMEM)) return EINA_FALSE;
else EINA_LOCK_ABORT_DEBUG(ok, rwlock_init, mutex);
return EINA_FALSE;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_rwlock_free(Eina_RWLock *mutex)
{
pthread_rwlock_destroy(&(mutex->mutex));
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_barrier_new(Eina_Barrier *barrier, int needed)
{
#ifdef EINA_HAVE_PTHREAD_BARRIER
int ok = pthread_barrier_init(&(barrier->barrier), NULL, needed);
if (ok == 0) return EINA_TRUE;
else if ((ok == EAGAIN) || (ok == ENOMEM)) return EINA_FALSE;
else EINA_LOCK_ABORT_DEBUG(ok, barrier_init, barrier);
return EINA_FALSE;
#else
barrier->needed = needed;
barrier->called = 0;
if (eina_lock_new(&(barrier->cond_lock)))
{
if (eina_condition_new(&(barrier->cond), &(barrier->cond_lock)))
return EINA_TRUE;
}
return EINA_FALSE;
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_barrier_free(Eina_Barrier *barrier)
{
#ifdef EINA_HAVE_PTHREAD_BARRIER
int ok = pthread_barrier_destroy(&(barrier->barrier));
if (ok != 0) EINA_LOCK_ABORT_DEBUG(ok, barrier_destroy, barrier);
#else
eina_condition_free(&(barrier->cond));
eina_lock_free(&(barrier->cond_lock));
barrier->needed = 0;
barrier->called = 0;
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_spinlock_new(Eina_Spinlock *spinlock)
{
#if defined(EINA_HAVE_POSIX_SPINLOCK)
int ok = pthread_spin_init(spinlock, PTHREAD_PROCESS_PRIVATE);
if (ok == 0) return EINA_TRUE;
else if ((ok == EAGAIN) || (ok == ENOMEM)) return EINA_FALSE;
else EINA_LOCK_ABORT_DEBUG(ok, spin_init, spinlock);
return EINA_FALSE;
#elif defined(EINA_HAVE_OSX_SPINLOCK)
*spinlock = 0;
return EINA_TRUE;
#else
return eina_lock_new(spinlock);
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API void
_eina_spinlock_free(Eina_Spinlock *spinlock)
{
#if defined(EINA_HAVE_POSIX_SPINLOCK)
int ok = pthread_spin_destroy(spinlock);
if (ok != 0) EINA_LOCK_ABORT_DEBUG(ok, spin_destroy, spinlock);
#elif defined(EINA_HAVE_OSX_SPINLOCK)
/* Not applicable */
(void) spinlock;
#else
eina_lock_free(spinlock);
#endif
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_semaphore_new(Eina_Semaphore *sem, int count_init)
{
if (sem && (count_init >= 0))
{
#if defined(EINA_HAVE_OSX_SEMAPHORE)
kern_return_t kr = semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, count_init);
return (kr == KERN_SUCCESS) ? EINA_TRUE : EINA_FALSE;
#else
return (sem_init(sem, 0, count_init) == 0) ? EINA_TRUE : EINA_FALSE;
#endif
}
return EINA_FALSE;
}
eina: Rename EAPI macro to EINA_API in Eina library Summary: Patch from a series of patches to rename EAPI symbols to specific library DSOs. EAPI was designed to be able to pass `__attribute__ ((visibility ("default")))` for symbols with GCC, which would mean that even if -fvisibility=hidden was used when compiling the library, the needed symbols would get exported. MSVC __almost__ works like GCC (or mingw) in which you can declare everything as export and it will just work (slower, but it will work). But there's a caveat: global variables will not work the same way for MSVC, but works for mingw and GCC. For global variables (as opposed to functions), MSVC requires correct DSO visibility for MSVC: instead of declaring a symbol as export for everything, you need to declare it as import when importing from another DSO and export when defining it locally. With current EAPI definitions, we get the following example working in mingw and MSVC (observe it doesn't define any global variables as exported symbols). Example 1: dll1: ``` EAPI void foo(void); EAPI void bar() { foo(); } ``` dll2: ``` EAPI void foo() { printf ("foo\n"); } ``` This works fine with API defined as __declspec(dllexport) in both cases and for gcc defining as `__atttribute__((visibility("default")))` However, the following: Example 2: dll1: ``` EAPI extern int foo; EAPI void foobar(void); EAPI void bar() { foo = 5; foobar(); } ``` dll2: ``` EAPI int foo = 0; EAPI void foobar() { printf ("foo %d\n", foo); } ``` This will work on mingw but will not work for MSVC. And that's why EAPI is the only solution that worked for MSVC. Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com> Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev> Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com> Reviewers: jptiz, lucas, woohyun, vtorri, raster Reviewed By: jptiz, lucas, vtorri Subscribers: ProhtMeyhet, cedric, #reviewers, #committers Tags: #efl Differential Revision: https://phab.enlightenment.org/D12188
2020-11-25 04:35:48 -08:00
EINA_API Eina_Bool
_eina_semaphore_free(Eina_Semaphore *sem)
{
if (sem)
{
#if defined(EINA_HAVE_OSX_SEMAPHORE)
return (semaphore_destroy(mach_task_self(), *sem) == KERN_SUCCESS)
? EINA_TRUE : EINA_FALSE;
#else
return (sem_destroy(sem) == 0) ? EINA_TRUE : EINA_FALSE;
#endif
}
return EINA_FALSE;
}