io: add mp_save_file

Move from vo_gpu_next.c to io.c and return result.

3 files changed, 34 insertions, 25 deletions

diff --git a/osdep/io.c b/osdep/io.c
index 93f97b5ecf..617764c16a 100644
--- a/osdep/io.c
+++ b/osdep/io.c
@@ -918,3 +918,32 @@ int mp_mkostemps(char *template, int suffixlen, int flags)
     errno = EEXIST;
     return -1;
 }
+
+bool mp_save_to_file(const char *filepath, const void *data, size_t size)
+{
+    assert(filepath && data && size);
+
+    bool result = false;
+    char *tmp = talloc_asprintf(NULL, "%sXXXXXX", filepath);
+    int fd = mkstemp(tmp);
+    if (fd < 0)
+        goto done;
+    FILE *cache = fdopen(fd, "wb");
+    if (!cache) {
+        close(fd);
+        unlink(tmp);
+        goto done;
+    }
+    size_t written = fwrite(data, size, 1, cache);
+    int ret = fclose(cache);
+    if (written > 0 && !ret) {
+        ret = rename(tmp, filepath);
+        result = !ret;
+    } else {
+        unlink(tmp);
+    }
+
+done:
+    talloc_free(tmp);
+    return result;
+}
diff --git a/osdep/io.h b/osdep/io.h
index 0a0d01eb05..31d17154ed 100644
--- a/osdep/io.h
+++ b/osdep/io.h
@@ -240,5 +240,6 @@ extern char **environ;
 #endif /* __MINGW32__ */
 
 int mp_mkostemps(char *template, int suffixlen, int flags);
+bool mp_save_to_file(const char *filepath, const void *data, size_t size);
 
 #endif
diff --git a/video/out/vo_gpu_next.c b/video/out/vo_gpu_next.c
index f859b0f207..99e7754a50 100644
--- a/video/out/vo_gpu_next.c
+++ b/video/out/vo_gpu_next.c
@@ -1512,30 +1512,6 @@ static char *cache_filepath(void *ta_ctx, char *dir, const char *prefix, uint64_
     return mp_path_join_bstr(ta_ctx, bstr0(dir), filename);
 }
 
-static void cache_save_file(void *ta_ctx, char *filepath, void *data, size_t size)
-{
-    if (!data || !size)
-        return;
-
-    char *tmp = talloc_asprintf(ta_ctx, "%sXXXXXX", filepath);
-    int fd = mkstemp(tmp);
-    if (fd < 0)
-        return;
-    FILE *cache = fdopen(fd, "wb");
-    if (!cache) {
-        close(fd);
-        unlink(tmp);
-        return;
-    }
-    size_t written = fwrite(data, size, 1, cache);
-    int ret = fclose(cache);
-    if (written > 0 && !ret) {
-        ret = rename(tmp, filepath);
-    } else {
-        unlink(tmp);
-    }
-}
-
 static pl_cache_obj cache_load_obj(void *p, uint64_t key)
 {
     struct cache *c = p;
@@ -1573,6 +1549,9 @@ done:
 
 static void cache_save_obj(void *p, pl_cache_obj obj)
 {
+    if (!obj.data || !obj.size)
+        return;
+
     const struct cache *c = p;
     void *ta_ctx = talloc_new(NULL);
 
@@ -1590,7 +1569,7 @@ static void cache_save_obj(void *p, pl_cache_obj obj)
     }
 
     int64_t save_start = mp_time_ns();
-    cache_save_file(ta_ctx, filepath, obj.data, obj.size);
+    mp_save_to_file(filepath, obj.data, obj.size);
     int64_t save_end = mp_time_ns();
     MP_DBG(c, "%s: key(%" PRIx64 "), size(%zu), save time(%.3f ms)\n",
            __func__, obj.key, obj.size,