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							| @@ -0,0 +1,653 @@ | ||||
| # allocator tests | ||||
| # note for these to work there are a number constraints on the device geometry | ||||
| if = 'LFS2_BLOCK_CYCLES == -1' | ||||
|  | ||||
| [[case]] # parallel allocation test | ||||
| define.FILES = 3 | ||||
| define.SIZE = '(((LFS2_BLOCK_SIZE-8)*(LFS2_BLOCK_COUNT-6)) / FILES)' | ||||
| code = ''' | ||||
|     const char *names[FILES] = {"bacon", "eggs", "pancakes"}; | ||||
|     lfs2_file_t files[FILES]; | ||||
|  | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_mkdir(&lfs2, "breakfast") => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         sprintf(path, "breakfast/%s", names[n]); | ||||
|         lfs2_file_open(&lfs2, &files[n], path, | ||||
|                 LFS2_O_WRONLY | LFS2_O_CREAT | LFS2_O_APPEND) => 0; | ||||
|     } | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         size = strlen(names[n]); | ||||
|         for (lfs2_size_t i = 0; i < SIZE; i += size) { | ||||
|             lfs2_file_write(&lfs2, &files[n], names[n], size) => size; | ||||
|         } | ||||
|     } | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         lfs2_file_close(&lfs2, &files[n]) => 0; | ||||
|     } | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         sprintf(path, "breakfast/%s", names[n]); | ||||
|         lfs2_file_open(&lfs2, &file, path, LFS2_O_RDONLY) => 0; | ||||
|         size = strlen(names[n]); | ||||
|         for (lfs2_size_t i = 0; i < SIZE; i += size) { | ||||
|             lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|             assert(memcmp(buffer, names[n], size) == 0); | ||||
|         } | ||||
|         lfs2_file_close(&lfs2, &file) => 0; | ||||
|     } | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # serial allocation test | ||||
| define.FILES = 3 | ||||
| define.SIZE = '(((LFS2_BLOCK_SIZE-8)*(LFS2_BLOCK_COUNT-6)) / FILES)' | ||||
| code = ''' | ||||
|     const char *names[FILES] = {"bacon", "eggs", "pancakes"}; | ||||
|  | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_mkdir(&lfs2, "breakfast") => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         sprintf(path, "breakfast/%s", names[n]); | ||||
|         lfs2_file_open(&lfs2, &file, path, | ||||
|                 LFS2_O_WRONLY | LFS2_O_CREAT | LFS2_O_APPEND) => 0; | ||||
|         size = strlen(names[n]); | ||||
|         memcpy(buffer, names[n], size); | ||||
|         for (int i = 0; i < SIZE; i += size) { | ||||
|             lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|         } | ||||
|         lfs2_file_close(&lfs2, &file) => 0; | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|     } | ||||
|  | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     for (int n = 0; n < FILES; n++) { | ||||
|         sprintf(path, "breakfast/%s", names[n]); | ||||
|         lfs2_file_open(&lfs2, &file, path, LFS2_O_RDONLY) => 0; | ||||
|         size = strlen(names[n]); | ||||
|         for (int i = 0; i < SIZE; i += size) { | ||||
|             lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|             assert(memcmp(buffer, names[n], size) == 0); | ||||
|         } | ||||
|         lfs2_file_close(&lfs2, &file) => 0; | ||||
|     } | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # parallel allocation reuse test | ||||
| define.FILES = 3 | ||||
| define.SIZE = '(((LFS2_BLOCK_SIZE-8)*(LFS2_BLOCK_COUNT-6)) / FILES)' | ||||
| define.CYCLES = [1, 10] | ||||
| code = ''' | ||||
|     const char *names[FILES] = {"bacon", "eggs", "pancakes"}; | ||||
|     lfs2_file_t files[FILES]; | ||||
|  | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     for (int c = 0; c < CYCLES; c++) { | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         lfs2_mkdir(&lfs2, "breakfast") => 0; | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_file_open(&lfs2, &files[n], path, | ||||
|                     LFS2_O_WRONLY | LFS2_O_CREAT | LFS2_O_APPEND) => 0; | ||||
|         } | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             size = strlen(names[n]); | ||||
|             for (int i = 0; i < SIZE; i += size) { | ||||
|                 lfs2_file_write(&lfs2, &files[n], names[n], size) => size; | ||||
|             } | ||||
|         } | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             lfs2_file_close(&lfs2, &files[n]) => 0; | ||||
|         } | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_file_open(&lfs2, &file, path, LFS2_O_RDONLY) => 0; | ||||
|             size = strlen(names[n]); | ||||
|             for (int i = 0; i < SIZE; i += size) { | ||||
|                 lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|                 assert(memcmp(buffer, names[n], size) == 0); | ||||
|             } | ||||
|             lfs2_file_close(&lfs2, &file) => 0; | ||||
|         } | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_remove(&lfs2, path) => 0; | ||||
|         } | ||||
|         lfs2_remove(&lfs2, "breakfast") => 0; | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|     } | ||||
| ''' | ||||
|  | ||||
| [[case]] # serial allocation reuse test | ||||
| define.FILES = 3 | ||||
| define.SIZE = '(((LFS2_BLOCK_SIZE-8)*(LFS2_BLOCK_COUNT-6)) / FILES)' | ||||
| define.CYCLES = [1, 10] | ||||
| code = ''' | ||||
|     const char *names[FILES] = {"bacon", "eggs", "pancakes"}; | ||||
|  | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     for (int c = 0; c < CYCLES; c++) { | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         lfs2_mkdir(&lfs2, "breakfast") => 0; | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             lfs2_mount(&lfs2, &cfg) => 0; | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_file_open(&lfs2, &file, path, | ||||
|                     LFS2_O_WRONLY | LFS2_O_CREAT | LFS2_O_APPEND) => 0; | ||||
|             size = strlen(names[n]); | ||||
|             memcpy(buffer, names[n], size); | ||||
|             for (int i = 0; i < SIZE; i += size) { | ||||
|                 lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|             } | ||||
|             lfs2_file_close(&lfs2, &file) => 0; | ||||
|             lfs2_unmount(&lfs2) => 0; | ||||
|         } | ||||
|  | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_file_open(&lfs2, &file, path, LFS2_O_RDONLY) => 0; | ||||
|             size = strlen(names[n]); | ||||
|             for (int i = 0; i < SIZE; i += size) { | ||||
|                 lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|                 assert(memcmp(buffer, names[n], size) == 0); | ||||
|             } | ||||
|             lfs2_file_close(&lfs2, &file) => 0; | ||||
|         } | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|         lfs2_mount(&lfs2, &cfg) => 0; | ||||
|         for (int n = 0; n < FILES; n++) { | ||||
|             sprintf(path, "breakfast/%s", names[n]); | ||||
|             lfs2_remove(&lfs2, path) => 0; | ||||
|         } | ||||
|         lfs2_remove(&lfs2, "breakfast") => 0; | ||||
|         lfs2_unmount(&lfs2) => 0; | ||||
|     } | ||||
| ''' | ||||
|  | ||||
| [[case]] # exhaustion test | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     size = strlen("exhaustion"); | ||||
|     memcpy(buffer, "exhaustion", size); | ||||
|     lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|  | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     lfs2_ssize_t res; | ||||
|     while (true) { | ||||
|         res = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         if (res < 0) { | ||||
|             break; | ||||
|         } | ||||
|  | ||||
|         res => size; | ||||
|     } | ||||
|     res => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_RDONLY); | ||||
|     size = strlen("exhaustion"); | ||||
|     lfs2_file_size(&lfs2, &file) => size; | ||||
|     lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|     memcmp(buffer, "exhaustion", size) => 0; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # exhaustion wraparound test | ||||
| define.SIZE = '(((LFS2_BLOCK_SIZE-8)*(LFS2_BLOCK_COUNT-4)) / 3)' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     lfs2_file_open(&lfs2, &file, "padding", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     size = strlen("buffering"); | ||||
|     memcpy(buffer, "buffering", size); | ||||
|     for (int i = 0; i < SIZE; i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_remove(&lfs2, "padding") => 0; | ||||
|  | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     size = strlen("exhaustion"); | ||||
|     memcpy(buffer, "exhaustion", size); | ||||
|     lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|  | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     lfs2_ssize_t res; | ||||
|     while (true) { | ||||
|         res = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         if (res < 0) { | ||||
|             break; | ||||
|         } | ||||
|  | ||||
|         res => size; | ||||
|     } | ||||
|     res => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_RDONLY); | ||||
|     size = strlen("exhaustion"); | ||||
|     lfs2_file_size(&lfs2, &file) => size; | ||||
|     lfs2_file_read(&lfs2, &file, buffer, size) => size; | ||||
|     memcmp(buffer, "exhaustion", size) => 0; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_remove(&lfs2, "exhaustion") => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # dir exhaustion test | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // find out max file size | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir") => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     int count = 0; | ||||
|     while (true) { | ||||
|         err = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         if (err < 0) { | ||||
|             break; | ||||
|         } | ||||
|  | ||||
|         count += 1; | ||||
|     } | ||||
|     err => LFS2_ERR_NOSPC; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_remove(&lfs2, "exhaustion") => 0; | ||||
|     lfs2_remove(&lfs2, "exhaustiondir") => 0; | ||||
|  | ||||
|     // see if dir fits with max file size | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     for (int i = 0; i < count; i++) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir") => 0; | ||||
|     lfs2_remove(&lfs2, "exhaustiondir") => 0; | ||||
|     lfs2_remove(&lfs2, "exhaustion") => 0; | ||||
|  | ||||
|     // see if dir fits with > max file size | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     for (int i = 0; i < count+1; i++) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir") => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     lfs2_remove(&lfs2, "exhaustion") => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # what if we have a bad block during an allocation scan? | ||||
| in = "lfs2.c" | ||||
| define.LFS2_ERASE_CYCLES = 0xffffffff | ||||
| define.LFS2_BADBLOCK_BEHAVIOR = 'LFS2_TESTBD_BADBLOCK_READERROR' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     // first fill to exhaustion to find available space | ||||
|     lfs2_file_open(&lfs2, &file, "pacman", LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     strcpy((char*)buffer, "waka"); | ||||
|     size = strlen("waka"); | ||||
|     lfs2_size_t filesize = 0; | ||||
|     while (true) { | ||||
|         lfs2_ssize_t res = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         assert(res == (lfs2_ssize_t)size || res == LFS2_ERR_NOSPC); | ||||
|         if (res == LFS2_ERR_NOSPC) { | ||||
|             break; | ||||
|         } | ||||
|         filesize += size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     // now fill all but a couple of blocks of the filesystem with data | ||||
|     filesize -= 3*LFS2_BLOCK_SIZE; | ||||
|     lfs2_file_open(&lfs2, &file, "pacman", LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     strcpy((char*)buffer, "waka"); | ||||
|     size = strlen("waka"); | ||||
|     for (lfs2_size_t i = 0; i < filesize/size; i++) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     // also save head of file so we can error during lookahead scan | ||||
|     lfs2_block_t fileblock = file.ctz.head; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     // remount to force an alloc scan | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // but mark the head of our file as a "bad block", this is force our | ||||
|     // scan to bail early | ||||
|     lfs2_testbd_setwear(&cfg, fileblock, 0xffffffff) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "ghost", LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     strcpy((char*)buffer, "chomp"); | ||||
|     size = strlen("chomp"); | ||||
|     while (true) { | ||||
|         lfs2_ssize_t res = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         assert(res == (lfs2_ssize_t)size || res == LFS2_ERR_CORRUPT); | ||||
|         if (res == LFS2_ERR_CORRUPT) { | ||||
|             break; | ||||
|         } | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // now reverse the "bad block" and try to write the file again until we | ||||
|     // run out of space | ||||
|     lfs2_testbd_setwear(&cfg, fileblock, 0) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "ghost", LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     strcpy((char*)buffer, "chomp"); | ||||
|     size = strlen("chomp"); | ||||
|     while (true) { | ||||
|         lfs2_ssize_t res = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         assert(res == (lfs2_ssize_t)size || res == LFS2_ERR_NOSPC); | ||||
|         if (res == LFS2_ERR_NOSPC) { | ||||
|             break; | ||||
|         } | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|  | ||||
|     // check that the disk isn't hurt | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "pacman", LFS2_O_RDONLY) => 0; | ||||
|     strcpy((char*)buffer, "waka"); | ||||
|     size = strlen("waka"); | ||||
|     for (lfs2_size_t i = 0; i < filesize/size; i++) { | ||||
|         uint8_t rbuffer[4]; | ||||
|         lfs2_file_read(&lfs2, &file, rbuffer, size) => size; | ||||
|         assert(memcmp(rbuffer, buffer, size) == 0); | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
|  | ||||
| # Below, I don't like these tests. They're fragile and depend _heavily_ | ||||
| # on the geometry of the block device. But they are valuable. Eventually they | ||||
| # should be removed and replaced with generalized tests. | ||||
|  | ||||
| [[case]] # chained dir exhaustion test | ||||
| define.LFS2_BLOCK_SIZE = 512 | ||||
| define.LFS2_BLOCK_COUNT = 1024 | ||||
| if = 'LFS2_BLOCK_SIZE == 512 && LFS2_BLOCK_COUNT == 1024' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // find out max file size | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir") => 0; | ||||
|     for (int i = 0; i < 10; i++) { | ||||
|         sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i); | ||||
|         lfs2_mkdir(&lfs2, path) => 0; | ||||
|     } | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     int count = 0; | ||||
|     while (true) { | ||||
|         err = lfs2_file_write(&lfs2, &file, buffer, size); | ||||
|         if (err < 0) { | ||||
|             break; | ||||
|         } | ||||
|  | ||||
|         count += 1; | ||||
|     } | ||||
|     err => LFS2_ERR_NOSPC; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_remove(&lfs2, "exhaustion") => 0; | ||||
|     lfs2_remove(&lfs2, "exhaustiondir") => 0; | ||||
|     for (int i = 0; i < 10; i++) { | ||||
|         sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i); | ||||
|         lfs2_remove(&lfs2, path) => 0; | ||||
|     } | ||||
|  | ||||
|     // see that chained dir fails | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     for (int i = 0; i < count+1; i++) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|  | ||||
|     for (int i = 0; i < 10; i++) { | ||||
|         sprintf(path, "dirwithanexhaustivelylongnameforpadding%d", i); | ||||
|         lfs2_mkdir(&lfs2, path) => 0; | ||||
|     } | ||||
|  | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir") => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     // shorten file to try a second chained dir | ||||
|     while (true) { | ||||
|         err = lfs2_mkdir(&lfs2, "exhaustiondir"); | ||||
|         if (err != LFS2_ERR_NOSPC) { | ||||
|             break; | ||||
|         } | ||||
|  | ||||
|         lfs2_ssize_t filesize = lfs2_file_size(&lfs2, &file); | ||||
|         filesize > 0 => true; | ||||
|  | ||||
|         lfs2_file_truncate(&lfs2, &file, filesize - size) => 0; | ||||
|         lfs2_file_sync(&lfs2, &file) => 0; | ||||
|     } | ||||
|     err => 0; | ||||
|  | ||||
|     lfs2_mkdir(&lfs2, "exhaustiondir2") => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # split dir test | ||||
| define.LFS2_BLOCK_SIZE = 512 | ||||
| define.LFS2_BLOCK_COUNT = 1024 | ||||
| if = 'LFS2_BLOCK_SIZE == 512 && LFS2_BLOCK_COUNT == 1024' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // create one block hole for half a directory | ||||
|     lfs2_file_open(&lfs2, &file, "bump", LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     for (lfs2_size_t i = 0; i < cfg.block_size; i += 2) { | ||||
|         memcpy(&buffer[i], "hi", 2); | ||||
|     } | ||||
|     lfs2_file_write(&lfs2, &file, buffer, cfg.block_size) => cfg.block_size; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion", LFS2_O_WRONLY | LFS2_O_CREAT); | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < (cfg.block_count-4)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // remount to force reset of lookahead | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // open hole | ||||
|     lfs2_remove(&lfs2, "bump") => 0; | ||||
|  | ||||
|     lfs2_mkdir(&lfs2, "splitdir") => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "splitdir/bump", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     for (lfs2_size_t i = 0; i < cfg.block_size; i += 2) { | ||||
|         memcpy(&buffer[i], "hi", 2); | ||||
|     } | ||||
|     lfs2_file_write(&lfs2, &file, buffer, 2*cfg.block_size) => LFS2_ERR_NOSPC; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # outdated lookahead test | ||||
| define.LFS2_BLOCK_SIZE = 512 | ||||
| define.LFS2_BLOCK_COUNT = 1024 | ||||
| if = 'LFS2_BLOCK_SIZE == 512 && LFS2_BLOCK_COUNT == 1024' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // fill completely with two files | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion1", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion2", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2+1)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // remount to force reset of lookahead | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // rewrite one file | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion1", | ||||
|             LFS2_O_WRONLY | LFS2_O_TRUNC) => 0; | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // rewrite second file, this requires lookahead does not | ||||
|     // use old population | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion2", | ||||
|             LFS2_O_WRONLY | LFS2_O_TRUNC) => 0; | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2+1)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
|  | ||||
| [[case]] # outdated lookahead and split dir test | ||||
| define.LFS2_BLOCK_SIZE = 512 | ||||
| define.LFS2_BLOCK_COUNT = 1024 | ||||
| if = 'LFS2_BLOCK_SIZE == 512 && LFS2_BLOCK_COUNT == 1024' | ||||
| code = ''' | ||||
|     lfs2_format(&lfs2, &cfg) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // fill completely with two files | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion1", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion2", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2+1)/2)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // remount to force reset of lookahead | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|  | ||||
|     // rewrite one file with a hole of one block | ||||
|     lfs2_file_open(&lfs2, &file, "exhaustion1", | ||||
|             LFS2_O_WRONLY | LFS2_O_TRUNC) => 0; | ||||
|     lfs2_file_sync(&lfs2, &file) => 0; | ||||
|     size = strlen("blahblahblahblah"); | ||||
|     memcpy(buffer, "blahblahblahblah", size); | ||||
|     for (lfs2_size_t i = 0; | ||||
|             i < ((cfg.block_count-2)/2 - 1)*(cfg.block_size-8); | ||||
|             i += size) { | ||||
|         lfs2_file_write(&lfs2, &file, buffer, size) => size; | ||||
|     } | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     // try to allocate a directory, should fail! | ||||
|     lfs2_mkdir(&lfs2, "split") => LFS2_ERR_NOSPC; | ||||
|  | ||||
|     // file should not fail | ||||
|     lfs2_file_open(&lfs2, &file, "notasplit", | ||||
|             LFS2_O_WRONLY | LFS2_O_CREAT) => 0; | ||||
|     lfs2_file_write(&lfs2, &file, "hi", 2) => 2; | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|  | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| ''' | ||||
		Reference in New Issue
	
	Block a user