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https://github.com/libretro/RetroArch
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Cleanup core_info_set_core_lock
This commit is contained in:
twinaphex
parent
143224e09a
commit
ea6bf9b9fc
100
core_info.c
100
core_info.c
@ -227,35 +227,6 @@ static config_file_t *core_info_list_iterate(
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return NULL;
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}
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/* Returned path must be free()'d */
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static char *core_info_get_core_lock_file_path(const char *core_path)
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{
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char *lock_file_path = NULL;
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size_t len;
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if (string_is_empty(core_path))
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return NULL;
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/* Note: We follow the common 'core_info' trend of
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* allocating all strings dynamically... */
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/* Get path length */
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len = (strlen(core_path) + STRLEN_CONST(FILE_PATH_LOCK_EXTENSION) + 1) * sizeof(char);
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/* Allocate string */
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lock_file_path = (char*)malloc(len);
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if (!lock_file_path)
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return NULL;
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lock_file_path[0] = '\0';
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/* Lock file is just core path + 'lock' extension */
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strlcpy(lock_file_path, core_path, len);
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strlcat(lock_file_path, FILE_PATH_LOCK_EXTENSION, len);
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return lock_file_path;
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}
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static core_info_list_t *core_info_list_new(const char *path,
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const char *libretro_info_dir,
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const char *exts,
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@ -1547,26 +1518,32 @@ bool core_info_hw_api_supported(core_info_t *info)
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* core info list this is *not* thread safe */
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bool core_info_set_core_lock(const char *core_path, bool lock)
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{
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char *lock_file_path = NULL;
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core_info_ctx_find_t core_info;
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char lock_file_path[PATH_MAX_LENGTH];
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RFILE *lock_file = NULL;
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bool lock_file_exists = false;
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core_info_ctx_find_t core_info;
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if (string_is_empty(core_path))
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goto error;
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return false;
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/* Search for specified core */
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core_info.inf = NULL;
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core_info.path = core_path;
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if (!core_info_find(&core_info))
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goto error;
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return false;
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/* Get associated lock file path */
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lock_file_path = core_info_get_core_lock_file_path(core_info.inf->path);
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if (string_is_empty(core_info.inf->path))
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return false;
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/* Get lock file path */
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strlcpy(lock_file_path, core_info.inf->path,
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sizeof(lock_file_path));
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strlcat(lock_file_path, FILE_PATH_LOCK_EXTENSION,
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sizeof(lock_file_path));
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if (string_is_empty(lock_file_path))
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goto error;
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return false;
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/* Check whether lock file exists */
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lock_file_exists = path_is_valid(lock_file_path);
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@ -1574,50 +1551,33 @@ bool core_info_set_core_lock(const char *core_path, bool lock)
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/* Create or delete lock file, as required */
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if (lock && !lock_file_exists)
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{
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lock_file = filestream_open(
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RFILE *lock_file = filestream_open(
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lock_file_path,
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RETRO_VFS_FILE_ACCESS_WRITE,
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RETRO_VFS_FILE_ACCESS_HINT_NONE);
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if (!lock_file)
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goto error;
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return false;
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/* We have to write something - just output
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* a single character */
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if (filestream_putc(lock_file, 0) != 0)
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goto error;
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{
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filestream_close(lock_file);
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return false;
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}
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filestream_close(lock_file);
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lock_file = NULL;
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}
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else if (!lock && lock_file_exists)
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if (filestream_delete(lock_file_path) != 0)
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goto error;
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/* Clean up */
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free(lock_file_path);
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lock_file_path = NULL;
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return false;
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/* File operations were successful - update
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* core info entry */
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core_info.inf->is_locked = lock;
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return true;
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error:
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if (lock_file_path)
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{
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free(lock_file_path);
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lock_file_path = NULL;
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}
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if (lock_file)
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{
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filestream_close(lock_file);
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lock_file = NULL;
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}
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return false;
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}
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/* Fetches 'locked' status of specified core
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@ -1631,13 +1591,13 @@ error:
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* must be checked externally */
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bool core_info_get_core_lock(const char *core_path, bool validate_path)
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{
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char lock_file_path[PATH_MAX_LENGTH];
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const char *core_file_path = NULL;
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char *lock_file_path = NULL;
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bool is_locked = false;
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core_info_ctx_find_t core_info;
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if (string_is_empty(core_path))
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goto end;
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return false;
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core_info.inf = NULL;
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core_info.path = NULL;
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@ -1656,13 +1616,16 @@ bool core_info_get_core_lock(const char *core_path, bool validate_path)
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/* A core cannot be locked if it does not exist... */
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if (string_is_empty(core_file_path) ||
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!path_is_valid(core_file_path))
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goto end;
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return false;
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/* Get lock file path */
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lock_file_path = core_info_get_core_lock_file_path(core_file_path);
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strlcpy(lock_file_path, core_file_path,
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sizeof(lock_file_path));
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strlcat(lock_file_path, FILE_PATH_LOCK_EXTENSION,
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sizeof(lock_file_path));
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if (string_is_empty(lock_file_path))
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goto end;
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return false;
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/* Check whether lock file exists */
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is_locked = path_is_valid(lock_file_path);
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@ -1674,12 +1637,5 @@ bool core_info_get_core_lock(const char *core_path, bool validate_path)
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if (validate_path && core_info.inf)
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core_info.inf->is_locked = is_locked;
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end:
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if (lock_file_path)
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{
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free(lock_file_path);
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lock_file_path = NULL;
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}
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return is_locked;
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}
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