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hosted/multidrive: Speed up readdir()/get_dir_info().

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The two functions need to check whether they are called for a specific path
to implement the virtual mount point for the external storage. This
is statistically rare and a hit on the common case. Therefore speed up
the common case by performing integer comparision first, and only expensive
string construction and comparision if that succeeds.

Change-Id: I3c41fe073e1f4f8eb62d2b8556a36937c9cb8290
This commit is contained in:
Thomas Martitz 2014-02-24 23:07:37 +01:00
parent 3a3d26eee2
commit c27c3f10fd
2 changed files with 37 additions and 18 deletions
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6
firmware/export/rbpaths.h
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@ -55,8 +55,6 @@
#define PLUGIN_DIR ROCKBOX_DIR "/rocks"
#define CODECS_DIR ROCKBOX_DIR "/codecs"
#define paths_init()
#else /* APPLICATION */
#define HOME_DIR "<HOME>" /* replaced at runtime */
@ -68,8 +66,6 @@
#define CODECS_DIR ROCKBOX_LIBRARY_PATH "/rockbox/codecs"
#endif
extern void paths_init(void);
#endif /* !APPLICATION || SAMSUNG_YPR0 */
#define HOME_DIR_LEN (sizeof(HOME_DIR)-1)
@ -91,6 +87,8 @@ int app_mkdir(const char* name);
int app_rmdir(const char* name);
ssize_t app_readlink(const char *path, char *buf, size_t bufsiz);
extern void paths_init(void);
#endif
#define REC_BASE_DIR HOME_DIR