#include "block/block_int.h"
#include "block/qapi.h"
#include "qemu/main-loop.h"
+#include "qemu/timer.h"
#define CMD_NOFILE_OK 0x01
-int qemuio_misalign;
+bool qemuio_misalign;
static cmdinfo_t *cmdtab;
static int ncmds;
return NULL;
}
+/* Invoke fn() for commands with a matching prefix */
+void qemuio_complete_command(const char *input,
+ void (*fn)(const char *cmd, void *opaque),
+ void *opaque)
+{
+ cmdinfo_t *ct;
+ size_t input_len = strlen(input);
+
+ for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
+ if (strncmp(input, ct->name, input_len) == 0) {
+ fn(ct->name, opaque);
+ }
+ }
+}
+
static char **breakline(char *input, int *count)
{
int c = 0;
" writes a range of bytes from the given offset source from multiple buffers\n"
"\n"
" Example:\n"
-" 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
+" 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
"\n"
" Writes into a segment of the currently open file, using a buffer\n"
" filled with a set pattern (0xcdcdcdcd).\n"
.oneline = "simulate a program crash using abort(3)",
};
+static void sleep_cb(void *opaque)
+{
+ bool *expired = opaque;
+ *expired = true;
+}
+
+static int sleep_f(BlockDriverState *bs, int argc, char **argv)
+{
+ char *endptr;
+ long ms;
+ struct QEMUTimer *timer;
+ bool expired = false;
+
+ ms = strtol(argv[1], &endptr, 0);
+ if (ms < 0 || *endptr != '\0') {
+ printf("%s is not a valid number\n", argv[1]);
+ return 0;
+ }
+
+ timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired);
+ timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms);
+
+ while (!expired) {
+ main_loop_wait(false);
+ }
+
+ timer_free(timer);
+
+ return 0;
+}
+
+static const cmdinfo_t sleep_cmd = {
+ .name = "sleep",
+ .argmin = 1,
+ .argmax = 1,
+ .cfunc = sleep_f,
+ .flags = CMD_NOFILE_OK,
+ .oneline = "waits for the given value in milliseconds",
+};
+
static void help_oneline(const char *cmd, const cmdinfo_t *ct)
{
if (cmd) {
qemuio_add_command(&resume_cmd);
qemuio_add_command(&wait_break_cmd);
qemuio_add_command(&abort_cmd);
+ qemuio_add_command(&sleep_cmd);
}