vasilito
b9874d0941
Add redbear-usb-storage-check in-guest binary that validates USB mass storage read and write I/O: discovers /scheme/disk/ devices, writes a test pattern to sector 2048, reads it back, verifies match, restores original content. Updates test-usb-storage-qemu.sh with write-proof verification step. Includes all accumulated Red Bear OS work: kernel patches, relibc patches, driver infrastructure, DRM/GPU, KDE recipes, firmware, validation tooling, build system hardening, and documentation.
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
#include "../test_helpers.h"
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#include "common.h"
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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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// Same test logic as frob in rustc/library/std/sync/rwlock/tests.rs
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#define N 10
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//#define M 1000
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#define M 100000
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struct arg {
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pthread_rwlock_t *rwlock;
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};
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void *routine(void *arg_raw) {
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struct arg *arg = arg_raw;
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int status;
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for (uint64_t i = 0; i < M; i++) {
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if (random_bool()) {
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status = pthread_rwlock_wrlock(arg->rwlock);
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ERROR_IF(pthread_rwlock_wrlock, status, != 0);
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} else {
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status = pthread_rwlock_rdlock(arg->rwlock);
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ERROR_IF(pthread_rwlock_rdlock, status, != 0);
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}
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status = pthread_rwlock_unlock(arg->rwlock);
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ERROR_IF(pthread_rwlock_unlock, status, != 0);
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}
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return NULL;
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}
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int main(void) {
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int status;
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pthread_rwlock_t rwlock;
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status = pthread_rwlock_init(&rwlock, NULL);
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ERROR_IF(pthread_rwlock_init, status, != 0);
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pthread_t threads[N];
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struct arg args[N];
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for (size_t i = 0; i < N; i++) {
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args[i] = (struct arg){ .rwlock = &rwlock };
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status = pthread_create(&threads[i], NULL, routine, &args[i]);
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ERROR_IF(pthread_create, status, != 0);
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}
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for (size_t i = 0; i < N; i++) {
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status = pthread_join(threads[i], NULL);
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ERROR_IF(pthread_join, status, != 0);
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}
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status = pthread_rwlock_destroy(&rwlock);
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ERROR_IF(pthread_rwlock_destroy, status, != 0);
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return 0;
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}
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