io: remove Windows tmpfile() emulation

Unused now. The old stream cache used it, but it was removed.

On a side note, the demuxer cache uses mp_mkostemps(). It looks like our
Windows open() emulation handles this correctly by using CREATE_NEW, so
no functionality gets lost by the "new" approach. On the other hand, the
demuxer cache does not set FILE_FLAG_DELETE_ON_CLOSE, but instead tries
to delete the file after opening (POSIX style), which probably won't
work on Windows. But I'm not sure how to make it use the DELETE_ON_CLOSE
flag, so whatever.

2 files changed, 0 insertions, 37 deletions

diff --git a/osdep/io.c b/osdep/io.c
index f45b93a333..db61a705fd 100644
--- a/osdep/io.c
+++ b/osdep/io.c
@@ -632,41 +632,6 @@ char *mp_win32_getcwd(char *buf, size_t size)
     return buf;
 }
 
-FILE *mp_tmpfile(void)
-{
-    // Reserve a file name in the format %TMP%\mpvXXXX.TMP
-    wchar_t tmp_path[MAX_PATH + 1];
-    if (!GetTempPathW(MAX_PATH + 1, tmp_path))
-        return NULL;
-    wchar_t tmp_name[MAX_PATH + 1];
-    if (!GetTempFileNameW(tmp_path, L"mpv", 0, tmp_name))
-        return NULL;
-
-    // Create the file. FILE_ATTRIBUTE_TEMPORARY indicates the file will be
-    // short-lived. Windows should avoid flushing it to disk while there is
-    // sufficient cache.
-    HANDLE file = CreateFileW(tmp_name, GENERIC_READ | GENERIC_WRITE | DELETE,
-        FILE_SHARE_READ | FILE_SHARE_DELETE, NULL, CREATE_ALWAYS,
-        FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE, NULL);
-    if (file == INVALID_HANDLE_VALUE) {
-        DeleteFileW(tmp_name);
-        return NULL;
-    }
-
-    int fd = _open_osfhandle((intptr_t)file, 0);
-    if (fd < 0) {
-        CloseHandle(file);
-        return NULL;
-    }
-    FILE *fp = fdopen(fd, "w+b");
-    if (!fp) {
-        close(fd);
-        return NULL;
-    }
-
-    return fp;
-}
-
 static char **utf8_environ;
 static void *utf8_environ_ctx;
 
diff --git a/osdep/io.h b/osdep/io.h
index 131f3e2fee..a1c65f18e9 100644
--- a/osdep/io.h
+++ b/osdep/io.h
@@ -104,7 +104,6 @@ struct dirent *mp_readdir(DIR *dir);
 int mp_closedir(DIR *dir);
 int mp_mkdir(const char *path, int mode);
 char *mp_win32_getcwd(char *buf, size_t size);
-FILE *mp_tmpfile(void);
 char *mp_getenv(const char *name);
 off_t mp_lseek(int fd, off_t offset, int whence);
 
@@ -161,7 +160,6 @@ void mp_globfree(mp_glob_t *pglob);
 #define closedir(...) mp_closedir(__VA_ARGS__)
 #define mkdir(...) mp_mkdir(__VA_ARGS__)
 #define getcwd(...) mp_win32_getcwd(__VA_ARGS__)
-#define tmpfile(...) mp_tmpfile(__VA_ARGS__)
 #define getenv(...) mp_getenv(__VA_ARGS__)
 
 #undef lseek