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return write errors on close. 

SVN revision: 22758
This commit is contained in:
Carsten Haitzler 2006-05-20 02:44:24 +00:00
parent 7494df931a
commit f019dcad07
3 changed files with 67 additions and 34 deletions
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51
legacy/eet/src/lib/Eet.h
View File

@ -61,15 +61,26 @@ extern "C" {
/***************************************************************************/
enum _Eet_File_Mode
typedef enum _Eet_File_Mode
{
EET_FILE_MODE_INVALID = -1,
EET_FILE_MODE_READ,
EET_FILE_MODE_WRITE,
EET_FILE_MODE_READ_WRITE
};
} Eet_File_Mode;
typedef enum _Eet_File_Mode Eet_File_Mode;
typedef enum _Eet_Error
{
EET_ERROR_NONE,
EET_ERROR_BAD_OBJECT,
EET_ERROR_EMPTY,
EET_ERROR_NOT_WRITABLE,
EET_ERROR_WRITE_ERROR,
EET_ERROR_WRITE_ERROR_FILE_TOO_BIG,
EET_ERROR_WRITE_ERROR_IO_ERROR,
EET_ERROR_WRITE_ERROR_OUT_OF_SPACE,
EET_ERROR_WRITE_ERROR_FILE_CLOSED
} Eet_Error;
typedef struct _Eet_File Eet_File;
typedef struct _Eet_Data_Descriptor Eet_Data_Descriptor;
@ -183,14 +194,14 @@ extern "C" {
* }
* @endcode
*/
EAPI Eet_File *eet_open (const char *file, Eet_File_Mode mode);
EAPI Eet_File *eet_open(const char *file, Eet_File_Mode mode);
/**
* Get the mode an Eet_File was opened with.
* @param ef A valid eet file handle.
* @return The mode ef was opened with.
*/
EAPI Eet_File_Mode eet_mode_get (Eet_File *ef);
EAPI Eet_File_Mode eet_mode_get(Eet_File *ef);
/**
* Close an eet file handle and flush and writes pending.
@ -202,7 +213,7 @@ extern "C" {
*
* If the eet file handle is not valid nothing will be done.
*/
EAPI void eet_close (Eet_File *ef);
EAPI Eet_Error eet_close(Eet_File *ef);
/**
* Read a specified entry from an eet file and return data
@ -221,7 +232,7 @@ extern "C" {
* If the eet file handle is not valid NULL is returned and size_ret is
* filled with 0.
*/
EAPI void *eet_read (Eet_File *ef, const char *name, int *size_ret);
EAPI void *eet_read(Eet_File *ef, const char *name, int *size_ret);
/**
* Write a specified entry to an eet file handle
@ -246,7 +257,7 @@ extern "C" {
* a flush to disk (it will stay in ram till the eet file handle is
* closed though).
*/
EAPI int eet_write (Eet_File *ef, const char *name, const void *data, int size, int compress);
EAPI int eet_write(Eet_File *ef, const char *name, const void *data, int size, int compress);
/**
* Delete a specified entry from an Eet file being written or re-written
@ -263,7 +274,7 @@ extern "C" {
*
* Name, must not be NULL, otherwise 0 will be returned.
*/
EAPI int eet_delete(Eet_File *ef, const char *name);
EAPI int eet_delete(Eet_File *ef, const char *name);
/**
* List all entries in eet file matching shell glob.
@ -292,7 +303,7 @@ extern "C" {
* Hint: an easy way to list all entries in an eet file is to use a glob
* value of "*".
*/
EAPI char **eet_list (Eet_File *ef, const char *glob, int *count_ret);
EAPI char **eet_list(Eet_File *ef, const char *glob, int *count_ret);
/**
* Return the number of entries in the specified eet file.
@ -300,7 +311,7 @@ extern "C" {
* @return Number of entries in ef or -1 if the number of entries
* cannot be read due to open mode restrictions.
*/
EAPI int eet_num_entries(Eet_File *ef);
EAPI int eet_num_entries(Eet_File *ef);
/***************************************************************************/
@ -335,7 +346,7 @@ extern "C" {
* On success the function returns 1 indicating the header was read and
* decoded properly, or 0 on failure.
*/
EAPI int eet_data_image_header_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
EAPI int eet_data_image_header_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
/**
* Read image data from the named key in the eet file.
@ -370,7 +381,7 @@ extern "C" {
* when it is done with it. On failure NULL is returned and the parameter
* values may not contain any sensible data.
*/
EAPI void *eet_data_image_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
EAPI void *eet_data_image_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
/**
* Write image data to the named key in an eet file.
@ -402,7 +413,7 @@ extern "C" {
* On success this function returns the number of bytes that were required
* to encode the image data, or on failure it returns 0.
*/
EAPI int eet_data_image_write(Eet_File *ef, const char *name, const void *data, unsigned int w, unsigned int h, int alpha, int compress, int quality, int lossy);
EAPI int eet_data_image_write(Eet_File *ef, const char *name, const void *data, unsigned int w, unsigned int h, int alpha, int compress, int quality, int lossy);
/**
* Decode Image data header only to get information.
@ -435,7 +446,7 @@ extern "C" {
* On success the function returns 1 indicating the header was read and
* decoded properly, or 0 on failure.
*/
EAPI int eet_data_image_header_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
EAPI int eet_data_image_header_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
/**
* Decode Image data into pixel data.
@ -470,7 +481,7 @@ extern "C" {
* when it is done with it. On failure NULL is returned and the parameter
* values may not contain any sensible data.
*/
EAPI void *eet_data_image_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
EAPI void *eet_data_image_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *compress, int *quality, int *lossy);
/**
* Encode image data for storage or transmission.
@ -501,7 +512,7 @@ extern "C" {
* On success this function returns a pointer to the encoded data that you
* can free with free() when no longer needed.
*/
EAPI void *eet_data_image_encode(const void *data, int *size_ret, unsigned int w, unsigned int h, int alpha, int compress, int quality, int lossy);
EAPI void *eet_data_image_encode(const void *data, int *size_ret, unsigned int w, unsigned int h, int alpha, int compress, int quality, int lossy);
/***************************************************************************/
@ -694,7 +705,7 @@ extern "C" {
* call the descriptor is no longer valid.
*
*/
EAPI void eet_data_descriptor_free(Eet_Data_Descriptor *edd);
EAPI void eet_data_descriptor_free(Eet_Data_Descriptor *edd);
/**
* This function is an internal used by macros.
@ -705,7 +716,7 @@ extern "C" {
* thus is not documented.
*
*/
EAPI void eet_data_descriptor_element_add(Eet_Data_Descriptor *edd, const char *name, int type, int group_type, int offset, int count, const char *counter_name, Eet_Data_Descriptor *subtype);
EAPI void eet_data_descriptor_element_add(Eet_Data_Descriptor *edd, const char *name, int type, int group_type, int offset, int count, const char *counter_name, Eet_Data_Descriptor *subtype);
/**
* Read a data structure from an eet file and decodes it.
@ -745,7 +756,7 @@ extern "C" {
* to an eet file.
*
*/
EAPI int eet_data_write(Eet_File *ef, Eet_Data_Descriptor *edd, const char *name, const void *data, int compress);
EAPI int eet_data_write(Eet_File *ef, Eet_Data_Descriptor *edd, const char *name, const void *data, int compress);
/**
* Decode a data structure from an arbitary location in memory.

1
legacy/eet/src/lib/Eet_private.h
View File

@ -11,6 +11,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#if HAVE_ALLOCA_H
#include <alloca.h>
#endif

49
legacy/eet/src/lib/eet_lib.c
View File

@ -79,7 +79,7 @@ static void eet_cache_add(Eet_File *ef, Eet_File ***cache, int *cache_num,
static void eet_cache_del(Eet_File *ef, Eet_File ***cache, int *cache_num, int *cache_alloc);
static int eet_string_match(const char *s1, const char *s2);
static int eet_hash_gen(const char *key, int hash_size);
static void eet_flush(Eet_File *ef);
static Eet_Error eet_flush(Eet_File *ef);
static Eet_File_Node *find_node_by_name (Eet_File *ef, const char *name);
static int read_data_from_disk(Eet_File *ef, Eet_File_Node *efn, void *buf, int len);
@ -253,7 +253,7 @@ eet_hash_gen(const char *key, int hash_size)
}
/* flush out writes to an eet file */
static void
static Eet_Error
eet_flush(Eet_File *ef)
{
int i, count, size, num, offset;
@ -263,11 +263,11 @@ eet_flush(Eet_File *ef)
/* check to see its' an eet file pointer */
if ((!ef) || (ef->magic != EET_MAGIC_FILE))
return;
if (!ef->header) return;
if (!ef->header->directory) return;
if ((ef->mode != EET_FILE_MODE_WRITE) && (ef->mode != EET_FILE_MODE_READ_WRITE)) return;
if (!ef->writes_pending) return;
return EET_ERROR_BAD_OBJECT;
if (!ef->header) return EET_ERROR_EMPTY;
if (!ef->header->directory) return EET_ERROR_EMPTY;
if ((ef->mode != EET_FILE_MODE_WRITE) && (ef->mode != EET_FILE_MODE_READ_WRITE)) return EET_ERROR_NOT_WRITABLE;
if (!ef->writes_pending) return EET_ERROR_NONE;
/* calculate total size in bytes of directory block */
size = 0;
@ -340,7 +340,24 @@ eet_flush(Eet_File *ef)
i2 = htonl(i1);
*((int *)(buf + 16)) = (int)i2;
memcpy(buf + 20, efn->name, name_size);
if (fwrite(buf, buf_size, 1, ef->fp) != 1) return;
if (fwrite(buf, buf_size, 1, ef->fp) != 1)
{
write_error:
switch (ferror(ef->fp))
{
case EFBIG:
return EET_ERROR_WRITE_ERROR_FILE_TOO_BIG;
case EIO:
return EET_ERROR_WRITE_ERROR_IO_ERROR;
case ENOSPC:
return EET_ERROR_WRITE_ERROR_OUT_OF_SPACE;
case EPIPE:
return EET_ERROR_WRITE_ERROR_FILE_CLOSED;
default:
return EET_ERROR_WRITE_ERROR;
}
return EET_ERROR_WRITE_ERROR;
}
offset += buf_size;
}
}
@ -353,12 +370,13 @@ eet_flush(Eet_File *ef)
if (efn->compression >= 0)
{
if (fwrite(efn->data, efn->size, 1, ef->fp) != 1)
return;
goto write_error;
}
}
}
/* no more writes pending */
ef->writes_pending = 0;
return EET_ERROR_NONE;
}
EAPI int
@ -721,20 +739,22 @@ eet_mode_get(Eet_File *ef)
return ef->mode;
}
EAPI void
EAPI Eet_Error
eet_close(Eet_File *ef)
{
Eet_Error err;
/* check to see its' an eet file pointer */
if ((!ef) || (ef->magic != EET_MAGIC_FILE))
return;
return EET_ERROR_BAD_OBJECT;
/* deref */
ef->references--;
/* if its still referenced - dont go any further */
if (ef->references > 0) return;
if (ef->references > 0) return EET_ERROR_NONE;
/* if we are in cacheburst mode - dont free it - leave it in cache */
if (eet_cacheburst_mode)
{
if (!ef->delete_me_now) return;
if (!ef->delete_me_now) return EET_ERROR_NONE;
}
/* remove from cache */
if (ef->mode == EET_FILE_MODE_READ)
@ -742,7 +762,7 @@ eet_close(Eet_File *ef)
else if ((ef->mode == EET_FILE_MODE_WRITE) || (ef->mode == EET_FILE_MODE_READ_WRITE))
eet_cache_del(ef, &eet_writers, &eet_writers_num, &eet_writers_alloc);
/* flush any writes */
eet_flush(ef);
err = eet_flush(ef);
/* free up members */
if (ef->fp) fclose(ef->fp);
@ -779,6 +799,7 @@ eet_close(Eet_File *ef)
memset(ef, 0, sizeof(Eet_File));
/* free it */
free(ef);
return err;
}
EAPI void *