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Optimized win32_nextpath

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Based on a suggestion by Russell Belfer.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Signed-off-by: Russell Belfer <rb@github.com>
This commit is contained in:
Sven Strickroth 2012-10-02 17:16:22 +02:00
parent 19aa8416e5
commit 8b3de0b6b8
1 changed files with 10 additions and 42 deletions
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52
src/fileops.c
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@ -418,55 +418,23 @@ static int win32_find_file(git_buf *path, const struct win32_path *root, const c
git__free(file_utf16);
return 0;
}
static wchar_t * win32_nextpath(wchar_t * src, wchar_t * dst, size_t maxlen)
static wchar_t* win32_nextpath(wchar_t *path, wchar_t *buf, size_t buflen)
{
wchar_t * orgsrc;
wchar_t term, *base = path;
while (*src == L';')
src++;
assert(path && buf && buflen);
orgsrc = src;
term = (*path == L'"') ? *path++ : L';';
if (!--maxlen)
goto nullterm;
for (buflen--; *path && *path != term && buflen; buflen--)
*buf++ = *path++;
while (*src && *src != L';')
{
if (*src != L'"')
{
*dst++ = *src++;
if (!--maxlen)
{
orgsrc = src;
goto nullterm;
}
}
else
{
src++;
while (*src && *src != L'"')
{
*dst++ = *src++;
if (!--maxlen)
{
orgsrc = src;
goto nullterm;
}
}
*buf = L'\0'; /* reserved a byte via initial subtract */
if (*src)
src++;
}
}
while (*path == term || *path == L';')
path++;
while (*src == L';')
src++;
nullterm:
*dst = 0;
return (orgsrc != src) ? (wchar_t *)src : NULL;
return (path != base) ? path : NULL;
}
static int win32_find_system_file_using_path(git_buf *path, const char *filename)