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VISO: Some micro-optimizations

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This commit is contained in:
RichardG867
2022-10-25 23:19:05 -03:00
parent 40a6fe1486
commit b9d3de00a7
1 changed files with 4 additions and 5 deletions
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9
src/cdrom/cdrom_image_viso.c
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@@ -793,7 +793,6 @@ viso_init(const char *dirname, int *error)
if (!dir)
goto end;
strcpy(dir->path, dirname);
strcpy(dir->name_short, "[root]");
if (stat(dirname, &dir->stats) != 0) {
/* Use a blank structure if stat failed. */
memset(&dir->stats, 0x00, sizeof(struct stat));
@@ -801,7 +800,7 @@ viso_init(const char *dirname, int *error)
if (!S_ISDIR(dir->stats.st_mode)) /* root is not a directory */
goto end;
dir->parent = dir; /* for the root's path table and .. entries */
cdrom_image_viso_log("[%08X] %s => %s\n", dir, dir->path, dir->name_short);
cdrom_image_viso_log("[%08X] %s => [root]\n", dir, dir->path);
/* Traverse directories, starting with the root. */
viso_entry_t **dir_entries = NULL;
@@ -816,7 +815,7 @@ viso_init(const char *dirname, int *error)
size_t children_count = 3; /* include terminator, . and .. */
while ((readdir_entry = readdir(dirp))) {
/* Ignore . and .. pseudo-directories. */
if ((readdir_entry->d_name[0] == '.') && ((readdir_entry->d_name[1] == '\0') || ((readdir_entry->d_name[1] == '.') && (readdir_entry->d_name[2] == '\0'))))
if ((readdir_entry->d_name[0] == '.') && ((readdir_entry->d_name[1] == '\0') || (*((uint16_t *) &readdir_entry->d_name[1]) == '.')))
continue;
children_count++;
}
@@ -858,7 +857,7 @@ viso_init(const char *dirname, int *error)
rewinddir(dirp);
while ((readdir_entry = readdir(dirp))) {
/* Ignore . and .. pseudo-directories. */
if ((readdir_entry->d_name[0] == '.') && ((readdir_entry->d_name[1] == '\0') || ((readdir_entry->d_name[1] == '.') && (readdir_entry->d_name[2] == '\0'))))
if ((readdir_entry->d_name[0] == '.') && ((readdir_entry->d_name[1] == '\0') || (*((uint16_t *) &readdir_entry->d_name[1]) == '.')))
continue;
/* Add and fill entry. */
@@ -879,7 +878,7 @@ viso_init(const char *dirname, int *error)
/* Handle file size and El Torito boot code. */
if (!S_ISDIR(entry->stats.st_mode)) {
/* Clamp to 4 GB - 1 byte. */
/* Clamp file size to 4 GB - 1 byte. */
if (entry->stats.st_size > ((uint32_t) -1))
entry->stats.st_size = (uint32_t) -1;