summaryrefslogtreecommitdiff
path: root/src/test/ao_fat_test.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/ao_fat_test.c')
-rw-r--r--src/test/ao_fat_test.c310
1 files changed, 289 insertions, 21 deletions
diff --git a/src/test/ao_fat_test.c b/src/test/ao_fat_test.c
index 22ac03ad..3f947034 100644
--- a/src/test/ao_fat_test.c
+++ b/src/test/ao_fat_test.c
@@ -18,11 +18,13 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
#include <string.h>
#include <getopt.h>
#include <math.h>
#include <unistd.h>
#include <fcntl.h>
+#include <openssl/md5.h>
#define AO_FAT_TEST
@@ -40,7 +42,7 @@ void
ao_panic(uint8_t panic)
{
printf ("panic %d\n", panic);
- exit(1);
+ abort();
}
#define AO_PANIC_BUFIO 15
@@ -64,9 +66,12 @@ struct ao_cmds {
int fs_fd;
+uint64_t total_reads, total_writes;
+
uint8_t
ao_sdcard_read_block(uint32_t block, uint8_t *data)
{
+ ++total_reads;
lseek(fs_fd, block * 512, 0);
return read(fs_fd, data, 512) == 512;
}
@@ -74,45 +79,308 @@ ao_sdcard_read_block(uint32_t block, uint8_t *data)
uint8_t
ao_sdcard_write_block(uint32_t block, uint8_t *data)
{
+ ++total_writes;
lseek(fs_fd, block * 512, 0);
return write(fs_fd, data, 512) == 512;
}
+char *fs = "fs.fat";
+
void
ao_sdcard_init(void)
{
- fs_fd = open("fat.fs", 2);
+ char cmd[1024];
+
+ snprintf(cmd, sizeof(cmd), "rm -f %s && mkfs.vfat -C %s 16384", fs, fs);
+ if (system (cmd) != 0) {
+ fprintf(stderr, "'%s' failed\n", cmd);
+ exit(1);
+ }
+ fs_fd = open(fs, 2);
+ if (fs_fd < 0) {
+ perror (fs);
+ exit(1);
+ }
}
#include "ao_bufio.c"
+void
+check_bufio(char *where)
+{
+ int b;
+
+ for (b = 0; b < AO_NUM_BUF; b++) {
+ if (ao_bufio[b].busy) {
+ printf ("%s: buffer %d busy. block %d seqno %u\n",
+ where, b, ao_bufio[b].block, ao_bufio[b].seqno & 0xffff);
+ abort();
+ }
+ }
+}
+
+
+void
+check_fat(void);
+
#include "ao_fat.c"
+/* Get the next cluster entry in the chain */
+static uint16_t
+ao_fat_entry_raw_read(uint16_t cluster, uint8_t fat)
+{
+ uint32_t sector;
+ uint16_t offset;
+ uint8_t *buf;
+ uint16_t ret;
+
+// cluster -= 2;
+ sector = cluster >> (SECTOR_SHIFT - 1);
+ offset = (cluster << 1) & SECTOR_MASK;
+ buf = ao_fat_sector_get(fat_start + fat * sectors_per_fat + sector);
+ if (!buf)
+ return 0;
+ ret = get_u16(buf + offset);
+ ao_fat_sector_put(buf, 0);
+ return ret;
+}
+
+void
+dump_fat(void)
+{
+ int e;
+
+ printf ("\n **** FAT ****\n\n");
+ for (e = 0; e < number_cluster; e++) {
+ if ((e & 0xf) == 0x0)
+ printf ("%04x: ", e);
+ printf (" %04x", ao_fat_entry_raw_read(e, 0));
+ if ((e & 0xf) == 0xf)
+ putchar ('\n');
+ }
+}
+
+void
+fat_list(void)
+{
+ uint16_t entry = 0;
+ struct ao_fat_dirent dirent;
+
+ printf (" **** Root directory ****\n");
+ while (ao_fat_readdir(&entry, &dirent)) {
+ printf ("%04x: %-8.8s.%-3.3s %02x %04x %d\n",
+ entry,
+ dirent.name,
+ dirent.name + 8,
+ dirent.attr,
+ dirent.cluster,
+ dirent.size);
+ }
+
+ printf (" **** End of root directory ****\n");
+}
+
+void
+fatal(char *msg, ...)
+{
+ dump_fat();
+ fat_list();
+
+ va_list l;
+ va_start(l, msg);
+ vfprintf(stderr, msg, l);
+ va_end(l);
+
+ abort();
+}
+
+void
+check_fat(void)
+{
+ int e;
+ int f;
+
+ for (e = 0; e < number_cluster; e++) {
+ uint16_t v = ao_fat_entry_raw_read(e, 0);
+ for (f = 1; f < number_fat; f++) {
+ if (ao_fat_entry_raw_read(e, f) != v)
+ fatal ("fats differ at %d\n", e);
+ }
+ }
+}
+
+uint16_t
+check_file(uint16_t dent, uint16_t first_cluster, uint8_t *used)
+{
+ uint16_t clusters = 0;
+ uint16_t cluster;
+
+ if (!first_cluster)
+ return 0;
+
+ for (cluster = first_cluster;
+ (cluster & 0xfff8) != 0xfff8;
+ cluster = ao_fat_entry_raw_read(cluster, 0))
+ {
+ if (!ao_fat_cluster_valid(cluster))
+ fatal("file %d: invalid cluster %04x\n", dent, cluster);
+ if (used[cluster])
+ fatal("file %d: duplicate cluster %04x\n", dent, cluster);
+ used[cluster] = 1;
+ clusters++;
+ }
+ return clusters;
+}
+
+void
+check_fs(void)
+{
+ uint16_t r;
+ uint16_t cluster, chain;
+ uint8_t *used;
+
+ check_fat();
+
+ used = calloc(1, number_cluster);
+
+ for (r = 0; r < root_entries; r++) {
+ uint8_t *dent = ao_fat_root_get(r);
+ uint16_t clusters;
+ uint32_t size;
+ uint16_t first_cluster;
+ uint8_t name[11];
+
+ if (!dent)
+ fatal("cannot map dent %d\n", r);
+ memcpy(name, dent+0, 11);
+ first_cluster = get_u16(dent + 0x1a);
+ size = get_u32(dent + 0x1c);
+ ao_fat_root_put(dent, r, 0);
+
+ if (name[0] == AO_FAT_DENT_END) {
+ break;
+ }
+
+ clusters = check_file(r, first_cluster, used);
+ if (size > clusters * bytes_per_cluster)
+ fatal("file %d: size %u beyond clusters %d (%u)\n",
+ r, size, clusters, clusters * bytes_per_cluster);
+ if (size <= (clusters - 1) * bytes_per_cluster)
+ fatal("file %d: size %u too small clusters %d (%u)\n",
+ r, size, clusters, clusters * bytes_per_cluster);
+ }
+ for (; r < root_entries; r++) {
+ uint8_t *dent = ao_fat_root_get(r);
+ if (!dent)
+ fatal("cannot map dent %d\n", r);
+ if (dent[0] != AO_FAT_DENT_END)
+ fatal("found non-zero dent past end %d\n", r);
+ ao_fat_root_put(dent, r, 0);
+ }
+
+ for (cluster = 0; cluster < 2; cluster++) {
+ chain = ao_fat_entry_raw_read(cluster, 0);
+
+ if ((chain & 0xfff8) != 0xfff8)
+ fatal("cluster %d: not marked busy\n", cluster);
+ }
+ for (; cluster < number_cluster; cluster++) {
+ chain = ao_fat_entry_raw_read(cluster, 0);
+
+ if (chain != 0) {
+ if (used[cluster] == 0)
+ fatal("cluster %d: marked busy, but not in any file\n", cluster);
+ } else {
+ if (used[cluster] != 0)
+ fatal("cluster %d: marked free, but foudn in file\n", cluster);
+ }
+ }
+}
+
+#define NUM_FILES 512
+#define LINES_FILE 1000
+
+uint32_t sizes[NUM_FILES];
+
+unsigned char md5[NUM_FILES][MD5_DIGEST_LENGTH];
+
int
main(int argc, char **argv)
{
- uint8_t data[15];
- int len;
+ char name[12];
+ int id;
+ MD5_CTX ctx;
+ unsigned char md5_check[MD5_DIGEST_LENGTH];
+
+ if (argv[1])
+ fs = argv[1];
+
ao_fat_init();
- ao_fat_test();
- if (ao_fat_open("DATALOG TXT")) {
- printf ("DATALOG.TXT\n");
- while ((len = ao_fat_read(data, sizeof (data))) > 0) {
- write(1, data, len);
+
+ check_bufio("top");
+ ao_fat_setup();
+
+ check_fs();
+ check_bufio("after setup");
+ printf (" **** Creating %d files\n", NUM_FILES);
+
+ for (id = 0; id < NUM_FILES; id++) {
+ sprintf(name, "D%07dTXT", id);
+ if (ao_fat_creat(name) == AO_FAT_SUCCESS) {
+ int j;
+ char line[64];
+ check_bufio("file created");
+ MD5_Init(&ctx);
+ for (j = 0; j < 1000; j++) {
+ int len;
+ sprintf (line, "Hello, world %d %d\r\n", id, j);
+ len = strlen(line);
+ ao_fat_write((uint8_t *) line, len);
+ MD5_Update(&ctx, line, len);
+ sizes[id] += len;
+ }
+ ao_fat_close();
+ MD5_Final(&md5[id][0], &ctx);
+ if (id == 0) {
+ printf ("MD5 write %d:", id);
+ for (j = 0; j < MD5_DIGEST_LENGTH; j++)
+ printf(" %02x", md5[id][j]);
+ printf ("\n");
+ }
+ check_bufio("file written");
}
- ao_fat_close();
-// ao_fat_unlink("DATALOG TXT");
}
- if (ao_fat_open("NEWFILE TXT")) {
- printf ("NEWFILE.TXT\n");
- while ((len = ao_fat_read(data, sizeof (data))) > 0) {
- write(1, data, len);
+
+ check_bufio("all files created");
+ printf (" **** All done creating files\n");
+ check_fs();
+
+ printf (" **** Comparing %d files\n", NUM_FILES);
+
+ for (id = 0; id < NUM_FILES; id++) {
+ char buf[337];
+ sprintf(name, "D%07dTXT", id);
+ if (ao_fat_open(name, AO_FAT_OPEN_READ) == AO_FAT_SUCCESS) {
+ int len;
+
+ MD5_Init(&ctx);
+ while ((len = ao_fat_read((uint8_t *) buf, sizeof(buf))) > 0) {
+ MD5_Update(&ctx, buf, len);
+ }
+ ao_fat_close();
+ MD5_Final(md5_check, &ctx);
+ if (id == 0) {
+ int j;
+ printf ("MD5 read %d:", id);
+ for (j = 0; j < MD5_DIGEST_LENGTH; j++)
+ printf(" %02x", md5_check[j]);
+ printf ("\n");
+ }
+ if (memcmp(md5_check, &md5[id][0], sizeof (md5_check)) != 0)
+ fatal ("checksum failed file %d\n", id);
+ check_bufio("file shown");
}
- ao_fat_close();
- }
- if (ao_fat_creat ("NEWFILE TXT")) {
- for (len = 0; len < 4095; len++)
- ao_fat_write((uint8_t *) "hello, world!\n", 14);
- ao_fat_close();
}
+
+ printf ("\n **** Total IO: read %llu write %llu\n", total_reads, total_writes);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-04 10:43:36 +0000