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Zagor added the flush() function

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3416 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2003-03-10 17:10:46 +00:00
parent c5aaab4a36
commit 44e51833ed
2 changed files with 28 additions and 1 deletions
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28
firmware/common/file.c
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@ -174,6 +174,31 @@ int close(int fd)
LDEBUGF("close(%d)\n", fd);
if (fd < 0 || fd > MAX_OPEN_FILES-1) {
errno = EINVAL;
return -1;
}
if (!file->busy) {
errno = EBADF;
return -2;
}
if (file->write) {
rc = flush(fd);
if (rc < 0)
return rc * 10 - 3;
}
file->busy = false;
return 0;
}
int flush(int fd)
{
struct filedesc* file = &openfiles[fd];
int rc = 0;
LDEBUGF("flush(%d)\n", fd);
if (fd < 0 || fd > MAX_OPEN_FILES-1) {
errno = EINVAL;
return -1;
@ -202,7 +227,6 @@ int close(int fd)
if (rc < 0)
return rc * 10 - 5;
}
file->busy = false;
return 0;
}
@ -318,9 +342,11 @@ static int flush_cache(int fd)
DEBUGF("Flushing dirty sector cache %x\n", sector);
/* seek back one sector to get file position right */
#if 0
rc = fat_seek(&(file->fatfile), sector);
if ( rc < 0 )
return rc * 10 - 1;
#endif
rc = fat_readwrite(&(file->fatfile), 1,
file->cache, true );

1
firmware/include/file.h
View file

@ -56,6 +56,7 @@ extern int remove(const char*);
#ifndef SIMULATOR
extern int open(const char* pathname, int flags);
extern int close(int fd);
extern int flush(int fd);
extern int read(int fd, void* buf, int count);
extern int lseek(int fd, int offset, int whence);
extern int creat(const char *pathname, int mode);