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Fixed non-standard behaviour of rdwr streams

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Originally had two seperate positions for reading/writing,
but this is inconsistent with the the posix standard, which
has a single position for reading and writing.

Also added proper handling of when the file is dirty, just
added an internal flag for this state.

Also moved the entry out of the file struct, and rearranged
some members to clean things up.
This commit is contained in:
Christopher Haster
2017-04-23 23:39:50 -05:00
parent 287b54876e
commit 0406442253
4 changed files with 146 additions and 130 deletions
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6
tests/test_files.sh
View File

@@ -14,10 +14,14 @@ TEST
echo "--- Simple file test ---"
tests/test.py << TEST
lfs_mount(&lfs, &cfg) => 0;
lfs_file_open(&lfs, &file[0], "hello", LFS_O_RDWR | LFS_O_CREAT | LFS_O_APPEND) => 0;
lfs_file_open(&lfs, &file[0], "hello", LFS_O_WRONLY | LFS_O_CREAT) => 0;
size = strlen("Hello World!\n");
memcpy(wbuffer, "Hello World!\n", size);
lfs_file_write(&lfs, &file[0], wbuffer, size) => size;
lfs_file_close(&lfs, &file[0]) => 0;
lfs_file_open(&lfs, &file[0], "hello", LFS_O_RDONLY) => 0;
size = strlen("Hello World!\n");
lfs_file_read(&lfs, &file[0], rbuffer, size) => size;
memcmp(rbuffer, wbuffer, size) => 0;
lfs_file_close(&lfs, &file[0]) => 0;

4
tests/test_seek.sh
View File

@@ -211,7 +211,7 @@ tests/test.py << TEST
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos;
lfs_file_write(&lfs, &file[0], buffer, size) => size;
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos;
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos+size;
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "doggodogdog", size) => 0;
@@ -254,7 +254,7 @@ tests/test.py << TEST
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos;
lfs_file_write(&lfs, &file[0], buffer, size) => size;
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos;
lfs_file_seek(&lfs, &file[0], pos, LFS_SEEK_SET) => pos+size;
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "doggodogdog", size) => 0;