xref: /openbmc/qemu/tests/qtest/libqtest.h (revision 4e6b1384)
1 /*
2  * QTest
3  *
4  * Copyright IBM, Corp. 2012
5  * Copyright Red Hat, Inc. 2012
6  * Copyright SUSE LINUX Products GmbH 2013
7  *
8  * Authors:
9  *  Anthony Liguori   <aliguori@us.ibm.com>
10  *  Paolo Bonzini     <pbonzini@redhat.com>
11  *  Andreas Färber    <afaerber@suse.de>
12  *
13  * This work is licensed under the terms of the GNU GPL, version 2 or later.
14  * See the COPYING file in the top-level directory.
15  *
16  */
17 #ifndef LIBQTEST_H
18 #define LIBQTEST_H
19 
20 #include "qapi/qmp/qobject.h"
21 #include "qapi/qmp/qdict.h"
22 
23 typedef struct QTestState QTestState;
24 
25 /**
26  * qtest_initf:
27  * @fmt...: Format for creating other arguments to pass to QEMU, formatted
28  * like sprintf().
29  *
30  * Convenience wrapper around qtest_init().
31  *
32  * Returns: #QTestState instance.
33  */
34 QTestState *qtest_initf(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
35 
36 /**
37  * qtest_vinitf:
38  * @fmt: Format for creating other arguments to pass to QEMU, formatted
39  * like vsprintf().
40  * @ap: Format arguments.
41  *
42  * Convenience wrapper around qtest_init().
43  *
44  * Returns: #QTestState instance.
45  */
46 QTestState *qtest_vinitf(const char *fmt, va_list ap) GCC_FMT_ATTR(1, 0);
47 
48 /**
49  * qtest_init:
50  * @extra_args: other arguments to pass to QEMU.  CAUTION: these
51  * arguments are subject to word splitting and shell evaluation.
52  *
53  * Returns: #QTestState instance.
54  */
55 QTestState *qtest_init(const char *extra_args);
56 
57 /**
58  * qtest_init_without_qmp_handshake:
59  * @extra_args: other arguments to pass to QEMU.  CAUTION: these
60  * arguments are subject to word splitting and shell evaluation.
61  *
62  * Returns: #QTestState instance.
63  */
64 QTestState *qtest_init_without_qmp_handshake(const char *extra_args);
65 
66 /**
67  * qtest_init_with_serial:
68  * @extra_args: other arguments to pass to QEMU.  CAUTION: these
69  * arguments are subject to word splitting and shell evaluation.
70  * @sock_fd: pointer to store the socket file descriptor for
71  * connection with serial.
72  *
73  * Returns: #QTestState instance.
74  */
75 QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd);
76 
77 /**
78  * qtest_quit:
79  * @s: #QTestState instance to operate on.
80  *
81  * Shut down the QEMU process associated to @s.
82  */
83 void qtest_quit(QTestState *s);
84 
85 /**
86  * qtest_qmp_fds:
87  * @s: #QTestState instance to operate on.
88  * @fds: array of file descriptors
89  * @fds_num: number of elements in @fds
90  * @fmt...: QMP message to send to qemu, formatted like
91  * qobject_from_jsonf_nofail().  See parse_escape() for what's
92  * supported after '%'.
93  *
94  * Sends a QMP message to QEMU with fds and returns the response.
95  */
96 QDict *qtest_qmp_fds(QTestState *s, int *fds, size_t fds_num,
97                      const char *fmt, ...)
98     GCC_FMT_ATTR(4, 5);
99 
100 /**
101  * qtest_qmp:
102  * @s: #QTestState instance to operate on.
103  * @fmt...: QMP message to send to qemu, formatted like
104  * qobject_from_jsonf_nofail().  See parse_escape() for what's
105  * supported after '%'.
106  *
107  * Sends a QMP message to QEMU and returns the response.
108  */
109 QDict *qtest_qmp(QTestState *s, const char *fmt, ...)
110     GCC_FMT_ATTR(2, 3);
111 
112 /**
113  * qtest_qmp_send:
114  * @s: #QTestState instance to operate on.
115  * @fmt...: QMP message to send to qemu, formatted like
116  * qobject_from_jsonf_nofail().  See parse_escape() for what's
117  * supported after '%'.
118  *
119  * Sends a QMP message to QEMU and leaves the response in the stream.
120  */
121 void qtest_qmp_send(QTestState *s, const char *fmt, ...)
122     GCC_FMT_ATTR(2, 3);
123 
124 /**
125  * qtest_qmp_send_raw:
126  * @s: #QTestState instance to operate on.
127  * @fmt...: text to send, formatted like sprintf()
128  *
129  * Sends text to the QMP monitor verbatim.  Need not be valid JSON;
130  * this is useful for negative tests.
131  */
132 void qtest_qmp_send_raw(QTestState *s, const char *fmt, ...)
133     GCC_FMT_ATTR(2, 3);
134 
135 /**
136  * qtest_vqmp_fds:
137  * @s: #QTestState instance to operate on.
138  * @fds: array of file descriptors
139  * @fds_num: number of elements in @fds
140  * @fmt: QMP message to send to QEMU, formatted like
141  * qobject_from_jsonf_nofail().  See parse_escape() for what's
142  * supported after '%'.
143  * @ap: QMP message arguments
144  *
145  * Sends a QMP message to QEMU with fds and returns the response.
146  */
147 QDict *qtest_vqmp_fds(QTestState *s, int *fds, size_t fds_num,
148                       const char *fmt, va_list ap)
149     GCC_FMT_ATTR(4, 0);
150 
151 /**
152  * qtest_vqmp:
153  * @s: #QTestState instance to operate on.
154  * @fmt: QMP message to send to QEMU, formatted like
155  * qobject_from_jsonf_nofail().  See parse_escape() for what's
156  * supported after '%'.
157  * @ap: QMP message arguments
158  *
159  * Sends a QMP message to QEMU and returns the response.
160  */
161 QDict *qtest_vqmp(QTestState *s, const char *fmt, va_list ap)
162     GCC_FMT_ATTR(2, 0);
163 
164 /**
165  * qtest_qmp_vsend_fds:
166  * @s: #QTestState instance to operate on.
167  * @fds: array of file descriptors
168  * @fds_num: number of elements in @fds
169  * @fmt: QMP message to send to QEMU, formatted like
170  * qobject_from_jsonf_nofail().  See parse_escape() for what's
171  * supported after '%'.
172  * @ap: QMP message arguments
173  *
174  * Sends a QMP message to QEMU and leaves the response in the stream.
175  */
176 void qtest_qmp_vsend_fds(QTestState *s, int *fds, size_t fds_num,
177                          const char *fmt, va_list ap)
178     GCC_FMT_ATTR(4, 0);
179 
180 /**
181  * qtest_qmp_vsend:
182  * @s: #QTestState instance to operate on.
183  * @fmt: QMP message to send to QEMU, formatted like
184  * qobject_from_jsonf_nofail().  See parse_escape() for what's
185  * supported after '%'.
186  * @ap: QMP message arguments
187  *
188  * Sends a QMP message to QEMU and leaves the response in the stream.
189  */
190 void qtest_qmp_vsend(QTestState *s, const char *fmt, va_list ap)
191     GCC_FMT_ATTR(2, 0);
192 
193 /**
194  * qtest_receive:
195  * @s: #QTestState instance to operate on.
196  *
197  * Reads a QMP message from QEMU and returns the response.
198  */
199 QDict *qtest_qmp_receive(QTestState *s);
200 
201 /**
202  * qtest_qmp_eventwait:
203  * @s: #QTestState instance to operate on.
204  * @s: #event event to wait for.
205  *
206  * Continuously polls for QMP responses until it receives the desired event.
207  */
208 void qtest_qmp_eventwait(QTestState *s, const char *event);
209 
210 /**
211  * qtest_qmp_eventwait_ref:
212  * @s: #QTestState instance to operate on.
213  * @s: #event event to wait for.
214  *
215  * Continuously polls for QMP responses until it receives the desired event.
216  * Returns a copy of the event for further investigation.
217  */
218 QDict *qtest_qmp_eventwait_ref(QTestState *s, const char *event);
219 
220 /**
221  * qtest_qmp_receive_success:
222  * @s: #QTestState instance to operate on
223  * @event_cb: Event callback
224  * @opaque: Argument for @event_cb
225  *
226  * Poll QMP messages until a command success response is received.
227  * If @event_cb, call it for each event received, passing @opaque,
228  * the event's name and data.
229  * Return the success response's "return" member.
230  */
231 QDict *qtest_qmp_receive_success(QTestState *s,
232                                  void (*event_cb)(void *opaque,
233                                                   const char *name,
234                                                   QDict *data),
235                                  void *opaque);
236 
237 /**
238  * qtest_hmp:
239  * @s: #QTestState instance to operate on.
240  * @fmt...: HMP command to send to QEMU, formats arguments like sprintf().
241  *
242  * Send HMP command to QEMU via QMP's human-monitor-command.
243  * QMP events are discarded.
244  *
245  * Returns: the command's output.  The caller should g_free() it.
246  */
247 char *qtest_hmp(QTestState *s, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
248 
249 /**
250  * qtest_hmpv:
251  * @s: #QTestState instance to operate on.
252  * @fmt: HMP command to send to QEMU, formats arguments like vsprintf().
253  * @ap: HMP command arguments
254  *
255  * Send HMP command to QEMU via QMP's human-monitor-command.
256  * QMP events are discarded.
257  *
258  * Returns: the command's output.  The caller should g_free() it.
259  */
260 char *qtest_vhmp(QTestState *s, const char *fmt, va_list ap)
261     GCC_FMT_ATTR(2, 0);
262 
263 void qtest_module_load(QTestState *s, const char *prefix, const char *libname);
264 
265 /**
266  * qtest_get_irq:
267  * @s: #QTestState instance to operate on.
268  * @num: Interrupt to observe.
269  *
270  * Returns: The level of the @num interrupt.
271  */
272 bool qtest_get_irq(QTestState *s, int num);
273 
274 /**
275  * qtest_irq_intercept_in:
276  * @s: #QTestState instance to operate on.
277  * @string: QOM path of a device.
278  *
279  * Associate qtest irqs with the GPIO-in pins of the device
280  * whose path is specified by @string.
281  */
282 void qtest_irq_intercept_in(QTestState *s, const char *string);
283 
284 /**
285  * qtest_irq_intercept_out:
286  * @s: #QTestState instance to operate on.
287  * @string: QOM path of a device.
288  *
289  * Associate qtest irqs with the GPIO-out pins of the device
290  * whose path is specified by @string.
291  */
292 void qtest_irq_intercept_out(QTestState *s, const char *string);
293 
294 /**
295  * qtest_set_irq_in:
296  * @s: QTestState instance to operate on.
297  * @string: QOM path of a device
298  * @name: IRQ name
299  * @irq: IRQ number
300  * @level: IRQ level
301  *
302  * Force given device/irq GPIO-in pin to the given level.
303  */
304 void qtest_set_irq_in(QTestState *s, const char *string, const char *name,
305                       int irq, int level);
306 
307 /**
308  * qtest_outb:
309  * @s: #QTestState instance to operate on.
310  * @addr: I/O port to write to.
311  * @value: Value being written.
312  *
313  * Write an 8-bit value to an I/O port.
314  */
315 void qtest_outb(QTestState *s, uint16_t addr, uint8_t value);
316 
317 /**
318  * qtest_outw:
319  * @s: #QTestState instance to operate on.
320  * @addr: I/O port to write to.
321  * @value: Value being written.
322  *
323  * Write a 16-bit value to an I/O port.
324  */
325 void qtest_outw(QTestState *s, uint16_t addr, uint16_t value);
326 
327 /**
328  * qtest_outl:
329  * @s: #QTestState instance to operate on.
330  * @addr: I/O port to write to.
331  * @value: Value being written.
332  *
333  * Write a 32-bit value to an I/O port.
334  */
335 void qtest_outl(QTestState *s, uint16_t addr, uint32_t value);
336 
337 /**
338  * qtest_inb:
339  * @s: #QTestState instance to operate on.
340  * @addr: I/O port to read from.
341  *
342  * Returns an 8-bit value from an I/O port.
343  */
344 uint8_t qtest_inb(QTestState *s, uint16_t addr);
345 
346 /**
347  * qtest_inw:
348  * @s: #QTestState instance to operate on.
349  * @addr: I/O port to read from.
350  *
351  * Returns a 16-bit value from an I/O port.
352  */
353 uint16_t qtest_inw(QTestState *s, uint16_t addr);
354 
355 /**
356  * qtest_inl:
357  * @s: #QTestState instance to operate on.
358  * @addr: I/O port to read from.
359  *
360  * Returns a 32-bit value from an I/O port.
361  */
362 uint32_t qtest_inl(QTestState *s, uint16_t addr);
363 
364 /**
365  * qtest_writeb:
366  * @s: #QTestState instance to operate on.
367  * @addr: Guest address to write to.
368  * @value: Value being written.
369  *
370  * Writes an 8-bit value to memory.
371  */
372 void qtest_writeb(QTestState *s, uint64_t addr, uint8_t value);
373 
374 /**
375  * qtest_writew:
376  * @s: #QTestState instance to operate on.
377  * @addr: Guest address to write to.
378  * @value: Value being written.
379  *
380  * Writes a 16-bit value to memory.
381  */
382 void qtest_writew(QTestState *s, uint64_t addr, uint16_t value);
383 
384 /**
385  * qtest_writel:
386  * @s: #QTestState instance to operate on.
387  * @addr: Guest address to write to.
388  * @value: Value being written.
389  *
390  * Writes a 32-bit value to memory.
391  */
392 void qtest_writel(QTestState *s, uint64_t addr, uint32_t value);
393 
394 /**
395  * qtest_writeq:
396  * @s: #QTestState instance to operate on.
397  * @addr: Guest address to write to.
398  * @value: Value being written.
399  *
400  * Writes a 64-bit value to memory.
401  */
402 void qtest_writeq(QTestState *s, uint64_t addr, uint64_t value);
403 
404 /**
405  * qtest_readb:
406  * @s: #QTestState instance to operate on.
407  * @addr: Guest address to read from.
408  *
409  * Reads an 8-bit value from memory.
410  *
411  * Returns: Value read.
412  */
413 uint8_t qtest_readb(QTestState *s, uint64_t addr);
414 
415 /**
416  * qtest_readw:
417  * @s: #QTestState instance to operate on.
418  * @addr: Guest address to read from.
419  *
420  * Reads a 16-bit value from memory.
421  *
422  * Returns: Value read.
423  */
424 uint16_t qtest_readw(QTestState *s, uint64_t addr);
425 
426 /**
427  * qtest_readl:
428  * @s: #QTestState instance to operate on.
429  * @addr: Guest address to read from.
430  *
431  * Reads a 32-bit value from memory.
432  *
433  * Returns: Value read.
434  */
435 uint32_t qtest_readl(QTestState *s, uint64_t addr);
436 
437 /**
438  * qtest_readq:
439  * @s: #QTestState instance to operate on.
440  * @addr: Guest address to read from.
441  *
442  * Reads a 64-bit value from memory.
443  *
444  * Returns: Value read.
445  */
446 uint64_t qtest_readq(QTestState *s, uint64_t addr);
447 
448 /**
449  * qtest_memread:
450  * @s: #QTestState instance to operate on.
451  * @addr: Guest address to read from.
452  * @data: Pointer to where memory contents will be stored.
453  * @size: Number of bytes to read.
454  *
455  * Read guest memory into a buffer.
456  */
457 void qtest_memread(QTestState *s, uint64_t addr, void *data, size_t size);
458 
459 /**
460  * qtest_rtas_call:
461  * @s: #QTestState instance to operate on.
462  * @name: name of the command to call.
463  * @nargs: Number of args.
464  * @args: Guest address to read args from.
465  * @nret: Number of return value.
466  * @ret: Guest address to write return values to.
467  *
468  * Call an RTAS function
469  */
470 uint64_t qtest_rtas_call(QTestState *s, const char *name,
471                          uint32_t nargs, uint64_t args,
472                          uint32_t nret, uint64_t ret);
473 
474 /**
475  * qtest_bufread:
476  * @s: #QTestState instance to operate on.
477  * @addr: Guest address to read from.
478  * @data: Pointer to where memory contents will be stored.
479  * @size: Number of bytes to read.
480  *
481  * Read guest memory into a buffer and receive using a base64 encoding.
482  */
483 void qtest_bufread(QTestState *s, uint64_t addr, void *data, size_t size);
484 
485 /**
486  * qtest_memwrite:
487  * @s: #QTestState instance to operate on.
488  * @addr: Guest address to write to.
489  * @data: Pointer to the bytes that will be written to guest memory.
490  * @size: Number of bytes to write.
491  *
492  * Write a buffer to guest memory.
493  */
494 void qtest_memwrite(QTestState *s, uint64_t addr, const void *data, size_t size);
495 
496 /**
497  * qtest_bufwrite:
498  * @s: #QTestState instance to operate on.
499  * @addr: Guest address to write to.
500  * @data: Pointer to the bytes that will be written to guest memory.
501  * @size: Number of bytes to write.
502  *
503  * Write a buffer to guest memory and transmit using a base64 encoding.
504  */
505 void qtest_bufwrite(QTestState *s, uint64_t addr,
506                     const void *data, size_t size);
507 
508 /**
509  * qtest_memset:
510  * @s: #QTestState instance to operate on.
511  * @addr: Guest address to write to.
512  * @patt: Byte pattern to fill the guest memory region with.
513  * @size: Number of bytes to write.
514  *
515  * Write a pattern to guest memory.
516  */
517 void qtest_memset(QTestState *s, uint64_t addr, uint8_t patt, size_t size);
518 
519 /**
520  * qtest_clock_step_next:
521  * @s: #QTestState instance to operate on.
522  *
523  * Advance the QEMU_CLOCK_VIRTUAL to the next deadline.
524  *
525  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
526  */
527 int64_t qtest_clock_step_next(QTestState *s);
528 
529 /**
530  * qtest_clock_step:
531  * @s: QTestState instance to operate on.
532  * @step: Number of nanoseconds to advance the clock by.
533  *
534  * Advance the QEMU_CLOCK_VIRTUAL by @step nanoseconds.
535  *
536  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
537  */
538 int64_t qtest_clock_step(QTestState *s, int64_t step);
539 
540 /**
541  * qtest_clock_set:
542  * @s: QTestState instance to operate on.
543  * @val: Nanoseconds value to advance the clock to.
544  *
545  * Advance the QEMU_CLOCK_VIRTUAL to @val nanoseconds since the VM was launched.
546  *
547  * Returns: The current value of the QEMU_CLOCK_VIRTUAL in nanoseconds.
548  */
549 int64_t qtest_clock_set(QTestState *s, int64_t val);
550 
551 /**
552  * qtest_big_endian:
553  * @s: QTestState instance to operate on.
554  *
555  * Returns: True if the architecture under test has a big endian configuration.
556  */
557 bool qtest_big_endian(QTestState *s);
558 
559 /**
560  * qtest_get_arch:
561  *
562  * Returns: The architecture for the QEMU executable under test.
563  */
564 const char *qtest_get_arch(void);
565 
566 /**
567  * qtest_add_func:
568  * @str: Test case path.
569  * @fn: Test case function
570  *
571  * Add a GTester testcase with the given name and function.
572  * The path is prefixed with the architecture under test, as
573  * returned by qtest_get_arch().
574  */
575 void qtest_add_func(const char *str, void (*fn)(void));
576 
577 /**
578  * qtest_add_data_func:
579  * @str: Test case path.
580  * @data: Test case data
581  * @fn: Test case function
582  *
583  * Add a GTester testcase with the given name, data and function.
584  * The path is prefixed with the architecture under test, as
585  * returned by qtest_get_arch().
586  */
587 void qtest_add_data_func(const char *str, const void *data,
588                          void (*fn)(const void *));
589 
590 /**
591  * qtest_add_data_func_full:
592  * @str: Test case path.
593  * @data: Test case data
594  * @fn: Test case function
595  * @data_free_func: GDestroyNotify for data
596  *
597  * Add a GTester testcase with the given name, data and function.
598  * The path is prefixed with the architecture under test, as
599  * returned by qtest_get_arch().
600  *
601  * @data is passed to @data_free_func() on test completion.
602  */
603 void qtest_add_data_func_full(const char *str, void *data,
604                               void (*fn)(const void *),
605                               GDestroyNotify data_free_func);
606 
607 /**
608  * qtest_add:
609  * @testpath: Test case path
610  * @Fixture: Fixture type
611  * @tdata: Test case data
612  * @fsetup: Test case setup function
613  * @ftest: Test case function
614  * @fteardown: Test case teardown function
615  *
616  * Add a GTester testcase with the given name, data and functions.
617  * The path is prefixed with the architecture under test, as
618  * returned by qtest_get_arch().
619  */
620 #define qtest_add(testpath, Fixture, tdata, fsetup, ftest, fteardown) \
621     do { \
622         char *path = g_strdup_printf("/%s/%s", qtest_get_arch(), testpath); \
623         g_test_add(path, Fixture, tdata, fsetup, ftest, fteardown); \
624         g_free(path); \
625     } while (0)
626 
627 void qtest_add_abrt_handler(GHookFunc fn, const void *data);
628 
629 /**
630  * qtest_qmp_assert_success:
631  * @qts: QTestState instance to operate on
632  * @fmt...: QMP message to send to qemu, formatted like
633  * qobject_from_jsonf_nofail().  See parse_escape() for what's
634  * supported after '%'.
635  *
636  * Sends a QMP message to QEMU and asserts that a 'return' key is present in
637  * the response.
638  */
639 void qtest_qmp_assert_success(QTestState *qts, const char *fmt, ...)
640     GCC_FMT_ATTR(2, 3);
641 
642 QDict *qmp_fd_receive(int fd);
643 void qmp_fd_vsend_fds(int fd, int *fds, size_t fds_num,
644                       const char *fmt, va_list ap) GCC_FMT_ATTR(4, 0);
645 void qmp_fd_vsend(int fd, const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0);
646 void qmp_fd_send(int fd, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
647 void qmp_fd_send_raw(int fd, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
648 void qmp_fd_vsend_raw(int fd, const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0);
649 QDict *qmp_fdv(int fd, const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0);
650 QDict *qmp_fd(int fd, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
651 
652 /**
653  * qtest_cb_for_every_machine:
654  * @cb: Pointer to the callback function
655  * @skip_old_versioned: true if versioned old machine types should be skipped
656  *
657  *  Call a callback function for every name of all available machines.
658  */
659 void qtest_cb_for_every_machine(void (*cb)(const char *machine),
660                                 bool skip_old_versioned);
661 
662 /**
663  * qtest_qmp_device_add_qdict:
664  * @qts: QTestState instance to operate on
665  * @drv: Name of the device that should be added
666  * @arguments: QDict with properties for the device to intialize
667  *
668  * Generic hot-plugging test via the device_add QMP command with properties
669  * supplied in form of QDict. Use NULL for empty properties list.
670  */
671 void qtest_qmp_device_add_qdict(QTestState *qts, const char *drv,
672                                 const QDict *arguments);
673 
674 /**
675  * qtest_qmp_device_add:
676  * @qts: QTestState instance to operate on
677  * @driver: Name of the device that should be added
678  * @id: Identification string
679  * @fmt...: QMP message to send to qemu, formatted like
680  * qobject_from_jsonf_nofail().  See parse_escape() for what's
681  * supported after '%'.
682  *
683  * Generic hot-plugging test via the device_add QMP command.
684  */
685 void qtest_qmp_device_add(QTestState *qts, const char *driver, const char *id,
686                           const char *fmt, ...) GCC_FMT_ATTR(4, 5);
687 
688 /**
689  * qtest_qmp_device_del:
690  * @qts: QTestState instance to operate on
691  * @id: Identification string
692  *
693  * Generic hot-unplugging test via the device_del QMP command.
694  */
695 void qtest_qmp_device_del(QTestState *qts, const char *id);
696 
697 /**
698  * qmp_rsp_is_err:
699  * @rsp: QMP response to check for error
700  *
701  * Test @rsp for error and discard @rsp.
702  * Returns 'true' if there is error in @rsp and 'false' otherwise.
703  */
704 bool qmp_rsp_is_err(QDict *rsp);
705 
706 /**
707  * qmp_assert_error_class:
708  * @rsp: QMP response to check for error
709  * @class: an error class
710  *
711  * Assert the response has the given error class and discard @rsp.
712  */
713 void qmp_assert_error_class(QDict *rsp, const char *class);
714 
715 /**
716  * qtest_probe_child:
717  * @s: QTestState instance to operate on.
718  *
719  * Returns: true if the child is still alive.
720  */
721 bool qtest_probe_child(QTestState *s);
722 
723 /**
724  * qtest_set_expected_status:
725  * @s: QTestState instance to operate on.
726  * @status: an expected exit status.
727  *
728  * Set expected exit status of the child.
729  */
730 void qtest_set_expected_status(QTestState *s, int status);
731 
732 #endif
733