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#!/bin/bash
set -eu
SMALLSIZE=32
MEDIUMSIZE=2048
LARGESIZE=8192
echo "=== Truncate tests ==="
rm -rf blocks
tests/test.py << TEST
lfs_format(&lfs, &cfg) => 0;
TEST
truncate_test() {
STARTSIZES="$1"
STARTSEEKS="$2"
HOTSIZES="$3"
COLDSIZES="$4"
tests/test.py << TEST
static const lfs_off_t startsizes[] = {$STARTSIZES};
static const lfs_off_t startseeks[] = {$STARTSEEKS};
static const lfs_off_t hotsizes[] = {$HOTSIZES};
lfs_mount(&lfs, &cfg) => 0;
for (int i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
sprintf((char*)buffer, "hairyhead%d", i);
lfs_file_open(&lfs, &file[0], (const char*)buffer,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
strcpy((char*)buffer, "hair");
size = strlen((char*)buffer);
for (int j = 0; j < startsizes[i]; j += size) {
lfs_file_write(&lfs, &file[0], buffer, size) => size;
}
lfs_file_size(&lfs, &file[0]) => startsizes[i];
if (startseeks[i] != startsizes[i]) {
lfs_file_seek(&lfs, &file[0],
startseeks[i], LFS_SEEK_SET) => startseeks[i];
}
lfs_file_truncate(&lfs, &file[0], hotsizes[i]) => 0;
lfs_file_size(&lfs, &file[0]) => hotsizes[i];
lfs_file_close(&lfs, &file[0]) => 0;
}
lfs_unmount(&lfs) => 0;
TEST
tests/test.py << TEST
static const lfs_off_t startsizes[] = {$STARTSIZES};
static const lfs_off_t hotsizes[] = {$HOTSIZES};
static const lfs_off_t coldsizes[] = {$COLDSIZES};
lfs_mount(&lfs, &cfg) => 0;
for (int i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
sprintf((char*)buffer, "hairyhead%d", i);
lfs_file_open(&lfs, &file[0], (const char*)buffer, LFS_O_RDWR) => 0;
lfs_file_size(&lfs, &file[0]) => hotsizes[i];
size = strlen("hair");
int j = 0;
for (; j < startsizes[i] && j < hotsizes[i]; j += size) {
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "hair", size) => 0;
}
for (; j < hotsizes[i]; j += size) {
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "\0\0\0\0", size) => 0;
}
lfs_file_truncate(&lfs, &file[0], coldsizes[i]) => 0;
lfs_file_size(&lfs, &file[0]) => coldsizes[i];
lfs_file_close(&lfs, &file[0]) => 0;
}
lfs_unmount(&lfs) => 0;
TEST
tests/test.py << TEST
static const lfs_off_t startsizes[] = {$STARTSIZES};
static const lfs_off_t hotsizes[] = {$HOTSIZES};
static const lfs_off_t coldsizes[] = {$COLDSIZES};
lfs_mount(&lfs, &cfg) => 0;
for (int i = 0; i < sizeof(startsizes)/sizeof(startsizes[0]); i++) {
sprintf((char*)buffer, "hairyhead%d", i);
lfs_file_open(&lfs, &file[0], (const char*)buffer, LFS_O_RDONLY) => 0;
lfs_file_size(&lfs, &file[0]) => coldsizes[i];
size = strlen("hair");
int j = 0;
for (; j < startsizes[i] && j < hotsizes[i] && j < coldsizes[i];
j += size) {
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "hair", size) => 0;
}
for (; j < coldsizes[i]; j += size) {
lfs_file_read(&lfs, &file[0], buffer, size) => size;
memcmp(buffer, "\0\0\0\0", size) => 0;
}
lfs_file_close(&lfs, &file[0]) => 0;
}
lfs_unmount(&lfs) => 0;
TEST
}
echo "--- Cold shrinking truncate ---"
truncate_test \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE"
echo "--- Cold expanding truncate ---"
truncate_test \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
echo "--- Warm shrinking truncate ---"
truncate_test \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, 0, 0, 0, 0"
echo "--- Warm expanding truncate ---"
truncate_test \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
echo "--- Mid-file shrinking truncate ---"
truncate_test \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
" $LARGESIZE, $LARGESIZE, $LARGESIZE, $LARGESIZE, $LARGESIZE" \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, 0, 0, 0, 0"
echo "--- Mid-file expanding truncate ---"
truncate_test \
" 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE, 2*$LARGESIZE" \
" 0, 0, $SMALLSIZE, $MEDIUMSIZE, $LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE" \
"2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE, 2*$LARGESIZE"
echo "--- Results ---"
tests/stats.py
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