#include "qemu-io.h"
#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;
void qemuio_add_command(const cmdinfo_t *ci)
{
- cmdtab = g_realloc(cmdtab, ++ncmds * sizeof(*cmdtab));
+ cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds);
cmdtab[ncmds - 1] = *ci;
qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname);
}
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;
char *p;
- char **rval = g_malloc0(sizeof(char *));
- char **tmp;
+ char **rval = g_new0(char *, 1);
while (rval && (p = qemu_strsep(&input, " ")) != NULL) {
if (!*p) {
continue;
}
c++;
- tmp = g_realloc(rval, sizeof(*rval) * (c + 1));
- if (!tmp) {
- g_free(rval);
- rval = NULL;
- c = 0;
- break;
- } else {
- rval = tmp;
- }
+ rval = g_renew(char *, rval, (c + 1));
rval[c - 1] = p;
rval[c] = NULL;
}
CoWriteZeroes *data = opaque;
data->ret = bdrv_co_write_zeroes(data->bs, data->offset / BDRV_SECTOR_SIZE,
- data->count / BDRV_SECTOR_SIZE);
+ data->count / BDRV_SECTOR_SIZE, 0);
data->done = true;
if (data->ret < 0) {
*data->total = data->ret;
co = qemu_coroutine_create(co_write_zeroes_entry);
qemu_coroutine_enter(co, &data);
while (!data.done) {
- qemu_aio_wait();
+ aio_poll(bdrv_get_aio_context(bs), true);
}
if (data.ret < 0) {
return data.ret;
" 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"
}
}
- reqs = g_malloc0(nr_reqs * sizeof(*reqs));
- buf = g_malloc0(nr_reqs * sizeof(*buf));
- qiovs = g_malloc(nr_reqs * sizeof(*qiovs));
+ reqs = g_new0(BlockRequest, nr_reqs);
+ buf = g_new0(char *, nr_reqs);
+ qiovs = g_new(QEMUIOVector, nr_reqs);
for (i = 0; i < nr_reqs && optind < argc; i++) {
int j;
static int info_f(BlockDriverState *bs, int argc, char **argv)
{
BlockDriverInfo bdi;
+ ImageInfoSpecific *spec_info;
char s1[64], s2[64];
int ret;
printf("cluster size: %s\n", s1);
printf("vm state offset: %s\n", s2);
+ spec_info = bdrv_get_specific_info(bs);
+ if (spec_info) {
+ printf("Format specific information:\n");
+ bdrv_image_info_specific_dump(fprintf, stdout, spec_info);
+ qapi_free_ImageInfoSpecific(spec_info);
+ }
+
return 0;
}
num_checked = MIN(nb_sectors, INT_MAX);
ret = bdrv_is_allocated(bs, sector_num, num_checked, &num);
- if (ret == firstret) {
+ if (ret == firstret && num) {
*pnum += num;
} else {
break;
if (ret < 0) {
error_report("Failed to get allocation status: %s", strerror(-ret));
return 0;
+ } else if (!num) {
+ error_report("Unexpected end of image");
+ return 0;
}
retstr = ret ? " allocated" : "not allocated";
return 0;
}
+static int remove_break_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int ret;
+
+ ret = bdrv_debug_remove_breakpoint(bs, argv[1]);
+ if (ret < 0) {
+ printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret));
+ }
+
+ return 0;
+}
+
static const cmdinfo_t break_cmd = {
.name = "break",
.argmin = 2,
"request as tag",
};
+static const cmdinfo_t remove_break_cmd = {
+ .name = "remove_break",
+ .argmin = 1,
+ .argmax = 1,
+ .cfunc = remove_break_f,
+ .args = "tag",
+ .oneline = "remove a breakpoint by tag",
+};
+
static int resume_f(BlockDriverState *bs, int argc, char **argv)
{
int ret;
static int wait_break_f(BlockDriverState *bs, int argc, char **argv)
{
while (!bdrv_debug_is_suspended(bs, argv[1])) {
- qemu_aio_wait();
+ aio_poll(bdrv_get_aio_context(bs), true);
}
return 0;
.oneline = "simulate a program crash using abort(3)",
};
+static void sigraise_help(void)
+{
+ printf(
+"\n"
+" raises the given signal\n"
+"\n"
+" Example:\n"
+" 'sigraise %i' - raises SIGTERM\n"
+"\n"
+" Invokes raise(signal), where \"signal\" is the mandatory integer argument\n"
+" given to sigraise.\n"
+"\n", SIGTERM);
+}
+
+static int sigraise_f(BlockDriverState *bs, int argc, char **argv);
+
+static const cmdinfo_t sigraise_cmd = {
+ .name = "sigraise",
+ .cfunc = sigraise_f,
+ .argmin = 1,
+ .argmax = 1,
+ .flags = CMD_NOFILE_OK,
+ .args = "signal",
+ .oneline = "raises a signal",
+ .help = sigraise_help,
+};
+
+static int sigraise_f(BlockDriverState *bs, int argc, char **argv)
+{
+ int sig = cvtnum(argv[1]);
+ if (sig < 0) {
+ printf("non-numeric signal number argument -- %s\n", argv[1]);
+ return 0;
+ }
+
+ /* Using raise() to kill this process does not necessarily flush all open
+ * streams. At least stdout and stderr (although the latter should be
+ * non-buffered anyway) should be flushed, though. */
+ fflush(stdout);
+ fflush(stderr);
+
+ raise(sig);
+ return 0;
+}
+
+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(&alloc_cmd);
qemuio_add_command(&map_cmd);
qemuio_add_command(&break_cmd);
+ qemuio_add_command(&remove_break_cmd);
qemuio_add_command(&resume_cmd);
qemuio_add_command(&wait_break_cmd);
qemuio_add_command(&abort_cmd);
+ qemuio_add_command(&sleep_cmd);
+ qemuio_add_command(&sigraise_cmd);
}
projects / mirror_qemu.git / blobdiff