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if pipe handler deletes the pipe... be safe! 

SVN revision: 53323
This commit is contained in:
Carsten Haitzler 2010-10-13 00:35:09 +00:00
parent 8cde3d4ba6
commit 5eeda40f55
1 changed files with 25 additions and 3 deletions
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28
legacy/ecore/src/lib/ecore/ecore_pipe.c
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@ -57,8 +57,10 @@ struct _Ecore_Pipe
const void *data;
Ecore_Pipe_Cb handler;
unsigned int len;
int handling;
size_t already_read;
void *passed_data;
Eina_Bool delete_me : 1;
};
@ -326,6 +328,8 @@ ecore_pipe_del(Ecore_Pipe *p)
ECORE_MAGIC_FAIL(p, ECORE_MAGIC_PIPE, "ecore_pipe_del");
return NULL;
}
p->delete_me = EINA_TRUE;
if (p->handling > 0) return (void *)p->data;
if (p->fd_handler) ecore_main_fd_handler_del(p->fd_handler);
if (p->fd_read != PIPE_FD_INVALID) pipe_close(p->fd_read);
if (p->fd_write != PIPE_FD_INVALID) pipe_close(p->fd_write);
@ -468,17 +472,28 @@ ecore_pipe_write(Ecore_Pipe *p, const void *buffer, unsigned int nbytes)
}
/* Private function */
static void
_ecore_pipe_unhandle(Ecore_Pipe *p)
{
p->handling--;
if (p->delete_me)
{
ecore_pipe_del(p);
}
}
static Eina_Bool
_ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
{
Ecore_Pipe *p;
double start_time;
int i;
p = (Ecore_Pipe *)data;
start_time = ecore_time_get();
do
p->handling++;
for (i = 0; i < 16; i++)
{
ssize_t ret;
@ -505,6 +520,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
pipe_close(p->fd_read);
p->fd_read = PIPE_FD_INVALID;
p->fd_handler = NULL;
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_CANCEL;
}
#ifndef _WIN32
@ -515,6 +531,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
ERR("An unhandled error (ret: %zd errno: %d [%s])"
"occurred while reading from the pipe the length",
ret, errno, strerror(errno));
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_RENEW;
}
#else
@ -526,6 +543,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
pipe_close(p->fd_read);
p->fd_read = PIPE_FD_INVALID;
p->fd_handler = NULL;
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_CANCEL;
}
}
@ -553,6 +571,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
else if (ret >= 0)
{
p->already_read += ret;
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_RENEW;
}
else if (ret == 0)
@ -561,6 +580,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
pipe_close(p->fd_read);
p->fd_read = PIPE_FD_INVALID;
p->fd_handler = NULL;
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_CANCEL;
}
#ifndef _WIN32
@ -571,6 +591,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
ERR("An unhandled error (ret: %zd errno: %d)"
"occurred while reading from the pipe the data",
ret, errno);
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_RENEW;
}
#else
@ -582,6 +603,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
pipe_close(p->fd_read);
p->fd_read = PIPE_FD_INVALID;
p->fd_handler = NULL;
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_CANCEL;
}
else
@ -589,7 +611,7 @@ _ecore_pipe_read(void *data, Ecore_Fd_Handler *fd_handler __UNUSED__)
}
#endif
}
while (ecore_time_get() - start_time < ecore_animator_frametime_get());
_ecore_pipe_unhandle(p);
return ECORE_CALLBACK_RENEW;
}