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apple2pi
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clean up cached_get_file_info a little

This commit is contained in:
dschmenk 2013-09-07 09:10:26 -07:00
parent 2eaf496d05
commit b17af70266
1 changed files with 64 additions and 33 deletions
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97
src/fusea2pi.c
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@ -641,9 +641,9 @@ static int prodos_map_errno(int perr)
static int cache_get_file_info(const char *path, int *access, int *type, int *aux, int *storage, int *numblks, int *size, int *mod, int *create)
{
char dirpath[128], filename[32];
unsigned char *entry, prodos_name[65];
unsigned char *entry, prodos_name[65], data_buff[512];
int refnum, iblk, entrylen, entriesblk, filecnt, io_buff = 0;
int i, dl, l = strlen(path);
int iscached, i, dl, l = strlen(path);
for (dl = l - 1; dl; dl--)
if (path[dl] == '/')
@ -667,7 +667,8 @@ static int cache_get_file_info(const char *path, int *access, int *type, int *au
strncpy(dirpath, path, dl);
dirpath[dl] = '\0';
//printf("Match path %s to cached dir %s\n", dirpath, cachepath);
if (strcmp(dirpath, cachepath) == 0)
iscached = (strcmp(dirpath, cachepath) == 0);
if (iscached || (refnum = prodos_open(prodos_path(dirpath, NULL, NULL, NULL), &io_buff)) > 0)
{
strcpy(filename, path + dl + 1);
l = l - dl - 1;
@ -678,46 +679,73 @@ static int cache_get_file_info(const char *path, int *access, int *type, int *au
}
//printf("Match filename %s len %d\n", filename, l);
iblk = 0;
entrylen = cachedata[0][0x23];
entriesblk = cachedata[0][0x24];
filecnt = cachedata[0][0x25] + cachedata[0][0x26] * 256;
entry = &cachedata[0][4] + entrylen;
//printf("Cached entrylen = %d, filecnt = %d\n", entrylen, filecnt);
do
{
for (i = (iblk == 0) ? 1 : 0; i < entriesblk && filecnt; i++)
if (iscached || prodos_read(refnum, data_buff, 512) == 512)
{
if (entry[0])
if (iscached)
{
entry[(entry[0] & 0x0F) + 1] = 0;
//printf("Searching directory entry: %s len %d\n", entry + 1, entry[0] & 0x0F);
if ((entry[0] & 0x0F) == l)
if (iblk == 0)
{
//printf("Compare %s with %s\n", entry + 1, filename);
if (strncmp(entry + 1, filename, l) == 0)
{
*storage = entry[0x00] >> 4;
*type = entry[0x10];
*access = entry[0x1E];
*aux = entry[0x1F] + entry[0x20] * 256;
*numblks = entry[0x13] + entry[0x14] * 256;
*size = entry[0x15] + entry[0x16] * 256 + entry[0x17] * 65536;
*mod = entry[0x21] | (entry[0x22] << 8)
| (entry[0x23] << 16) | (entry[0x24] << 24);
*create = entry[0x18] | (entry[0x19] << 8)
| (entry[0x1A] << 16) | (entry[0x1B] << 24);
//printf("Cache hit: %s access = $%02X, type = $%02X, aux = $%04X, storage = $%02X, size = %d\n", filename, *access, *type, *aux, *storage, *size);
return 0;
}
entrylen = cachedata[0][0x23];
entriesblk = cachedata[0][0x24];
filecnt = cachedata[0][0x25] + cachedata[0][0x26] * 256;
entry = &cachedata[0][4] + entrylen;
}
else
entry = &cachedata[0][4];
}
else
{
if (iblk == 0)
{
entrylen = data_buff[0x23];
entriesblk = data_buff[0x24];
filecnt = data_buff[0x25] + data_buff[0x26] * 256;
entry = &data_buff[4] + entrylen;
}
else
entry = &data_buff[4];
}
for (i = (iblk == 0) ? 1 : 0; i < entriesblk && filecnt; i++)
{
if (entry[0])
{
//entry[(entry[0] & 0x0F) + 1] = 0;
//printf("Searching directory entry: %s len %d\n", entry + 1, entry[0] & 0x0F);
if ((entry[0] & 0x0F) == l)
{
//printf("Compare %s with %s\n", entry + 1, filename);
if (strncmp(entry + 1, filename, l) == 0)
{
*storage = entry[0x00] >> 4;
*type = entry[0x10];
*access = entry[0x1E];
*aux = entry[0x1F] + entry[0x20] * 256;
*numblks = entry[0x13] + entry[0x14] * 256;
*size = entry[0x15] + entry[0x16] * 256 + entry[0x17] * 65536;
*mod = entry[0x21] | (entry[0x22] << 8)
| (entry[0x23] << 16) | (entry[0x24] << 24);
*create = entry[0x18] | (entry[0x19] << 8)
| (entry[0x1A] << 16) | (entry[0x1B] << 24);
//printf("Cache hit: %s access = $%02X, type = $%02X, aux = $%04X, storage = $%02X, size = %d\n", filename, *access, *type, *aux, *storage, *size);
if (!iscached)
prodos_close(refnum, &io_buff);
return 0;
}
}
entry += entrylen;
filecnt--;
}
entry += entrylen;
filecnt--;
}
}
if (++iblk > CACHE_BLOCKS_MAX)
break;
entry = &cachedata[iblk][4];
else
filecnt = 0;
iblk++;
} while (filecnt != 0);
if (!iscached)
prodos_close(refnum, &io_buff);
}
if (prodos_get_file_info(prodos_path(path, NULL, NULL, prodos_name), access, type, aux, storage, numblks, mod, create) == 0)
{
@ -857,7 +885,10 @@ static int a2pi_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
}
}
if (++iblk > CACHE_BLOCKS_MAX)
{
cachepath[0] == '\0';
iblk = 1;
}
}
else
filecnt = 0;