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Added possibility to open multiple files with LFS_NO_MALLOC enabled.

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Damien George
2018-06-08 11:27:27 +10:00
committed by Christopher Haster
parent f94d233deb
commit 97711d78c4
2 changed files with 6 additions and 3 deletions
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7
lfs.c
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@@ -1283,7 +1283,7 @@ static int lfs_ctz_traverse(lfs_t *lfs,
/// Top level file operations /// /// Top level file operations ///
int lfs_file_open(lfs_t *lfs, lfs_file_t *file, int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
const char *path, int flags) { const char *path, int flags, void *file_buffer) {
// deorphan if we haven't yet, needed at most once after poweron // deorphan if we haven't yet, needed at most once after poweron
if ((flags & 3) != LFS_O_RDONLY && !lfs->deorphaned) { if ((flags & 3) != LFS_O_RDONLY && !lfs->deorphaned) {
int err = lfs_deorphan(lfs); int err = lfs_deorphan(lfs);
@@ -1340,7 +1340,10 @@ int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
} }
// allocate buffer if needed // allocate buffer if needed
if (lfs->cfg->file_buffer) { file->cache.block = 0xffffffff;
if (file_buffer) {
file->cache.buffer = file_buffer;
} else if (lfs->cfg->file_buffer) {
if (lfs->files) { if (lfs->files) {
// already in use // already in use
return LFS_ERR_NOMEM; return LFS_ERR_NOMEM;

2
lfs.h
View File

@@ -334,7 +334,7 @@ int lfs_stat(lfs_t *lfs, const char *path, struct lfs_info *info);
// //
// Returns a negative error code on failure. // Returns a negative error code on failure.
int lfs_file_open(lfs_t *lfs, lfs_file_t *file, int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
const char *path, int flags); const char *path, int flags, void *file_buffer);
// Close a file // Close a file
// //