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util/disk_cache: add support for removing old versions of the cache

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Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Timothy Arceri
2017-02-07 09:49:47 +11:00
parent 3342ce452c
commit 512c046edd
1 changed files with 37 additions and 0 deletions
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37
src/util/disk_cache.c
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@@ -24,6 +24,7 @@
#ifdef ENABLE_SHADER_CACHE
#include <ctype.h>
#include <ftw.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
@@ -131,6 +132,39 @@ concatenate_and_mkdir(void *ctx, char *path, const char *name)
return NULL;
}
static int
remove_dir(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
if (S_ISREG(sb->st_mode))
unlink(fpath);
else if (S_ISDIR(sb->st_mode))
rmdir(fpath);
return 0;
}
static void
remove_old_cache_directories(void *mem_ctx, char *path, const char *timestamp)
{
DIR *dir = opendir(path);
struct dirent* d_entry;
while((d_entry = readdir(dir)) != NULL)
{
struct stat sb;
stat(d_entry->d_name, &sb);
if (S_ISDIR(sb.st_mode) &&
strcmp(d_entry->d_name, timestamp) != 0 &&
strcmp(d_entry->d_name, "..") != 0 &&
strcmp(d_entry->d_name, ".") != 0) {
char *full_path =
ralloc_asprintf(mem_ctx, "%s/%s", path, d_entry->d_name);
nftw(full_path, remove_dir, 20, FTW_DEPTH);
}
}
}
static char *
create_mesa_cache_dir(void *mem_ctx, char *path, const char *timestamp,
const char *gpu_name)
@@ -139,6 +173,9 @@ create_mesa_cache_dir(void *mem_ctx, char *path, const char *timestamp,
if (new_path == NULL)
return NULL;
/* Remove cache directories for old Mesa versions */
remove_old_cache_directories(mem_ctx, new_path, timestamp);
new_path = concatenate_and_mkdir(mem_ctx, new_path, timestamp);
if (new_path == NULL)
return NULL;