Monitor: handle optional '-' arg as a bool

Historically, user monitor arguments beginning with '-' (eg. '-f')
were passed as integers down to handlers.

I've maintained this behavior in the new monitor because we didn't
have a boolean type at the very beginning of QMP. Today we have it
and this behavior is causing trouble to QMP's argument checker.

This commit fixes the problem by doing the following changes:

1. User Monitor

   Before: the optional arg was represented as a QInt, we'd pass 1
           down to handlers if the user specified the argument or
           0 otherwise

   This commit: the optional arg is represented as a QBool, we pass
                true down to handlers if the user specified the
                argument, otherwise _nothing_ is passed

2. QMP

   Before: the client was required to pass the arg as QBool, but we'd
           convert it to QInt internally. If the argument wasn't passed,
           we'd pass 0 down

   This commit: still require a QBool, but doesn't do any conversion and
                doesn't pass any default value

3. Convert existing handlers (do_eject()/do_migrate()) to the new way

   Before: Both handlers would expect a QInt value, either 0 or 1

   This commit: Change the handlers to accept a QBool, they handle the
                following cases:

                   A) true is passed: the option is enabled
                   B) false is passed: the option is disabled
                   C) nothing is passed: option not specified, use
                                         default behavior

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
3 files changed
tree: a3d030a7da12e5156cf2294c1c8a484df8ac7598
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. linux-user/
  12. net/
  13. pc-bios/
  14. QMP/
  15. roms/
  16. slirp/
  17. sysconfigs/
  18. target-alpha/
  19. target-arm/
  20. target-cris/
  21. target-i386/
  22. target-m68k/
  23. target-microblaze/
  24. target-mips/
  25. target-ppc/
  26. target-s390x/
  27. target-sh4/
  28. target-sparc/
  29. tcg/
  30. tests/
  31. .gitignore
  32. .gitmodules
  33. a.out.h
  34. acl.c
  35. acl.h
  36. aes.c
  37. aes.h
  38. aio.c
  39. alpha-dis.c
  40. alpha.ld
  41. arch_init.c
  42. arch_init.h
  43. arm-dis.c
  44. arm-semi.c
  45. arm.ld
  46. async.c
  47. balloon.c
  48. balloon.h
  49. block-migration.c
  50. block-migration.h
  51. block.c
  52. block.h
  53. block_int.h
  54. blockdev.c
  55. blockdev.h
  56. bswap.h
  57. bt-host.c
  58. bt-host.h
  59. bt-vhci.c
  60. buffered_file.c
  61. buffered_file.h
  62. cache-utils.c
  63. cache-utils.h
  64. Changelog
  65. check-qdict.c
  66. check-qfloat.c
  67. check-qint.c
  68. check-qjson.c
  69. check-qlist.c
  70. check-qstring.c
  71. cmd.c
  72. cmd.h
  73. cocoa.m
  74. CODING_STYLE
  75. config.h
  76. configure
  77. console.c
  78. console.h
  79. COPYING
  80. COPYING.LIB
  81. cpu-all.h
  82. cpu-common.h
  83. cpu-defs.h
  84. cpu-exec.c
  85. cpus.c
  86. cpus.h
  87. create_config
  88. cris-dis.c
  89. curses.c
  90. curses_keys.h
  91. cursor.c
  92. cursor_hidden.xpm
  93. cursor_left_ptr.xpm
  94. cutils.c
  95. d3des.c
  96. d3des.h
  97. def-helper.h
  98. device_tree.c
  99. device_tree.h
  100. dis-asm.h
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  102. disas.h
  103. dma-helpers.c
  104. dma.h
  105. dyngen-exec.h
  106. elf.h
  107. envlist.c
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  109. exec-all.h
  110. exec.c
  111. feature_to_c.sh
  112. gdbstub.c
  113. gdbstub.h
  114. gen-icount.h
  115. host-utils.c
  116. host-utils.h
  117. hpet.h
  118. hppa-dis.c
  119. hppa.ld
  120. hxtool
  121. i386-dis.c
  122. i386.ld
  123. ia64-dis.c
  124. ia64.ld
  125. input.c
  126. ioport-user.c
  127. ioport.c
  128. ioport.h
  129. iov.c
  130. iov.h
  131. json-lexer.c
  132. json-lexer.h
  133. json-parser.c
  134. json-parser.h
  135. json-streamer.c
  136. json-streamer.h
  137. keymaps.c
  138. keymaps.h
  139. kvm-all.c
  140. kvm-stub.c
  141. kvm.h
  142. libfdt_env.h
  143. LICENSE
  144. linux-aio.c
  145. m68k-dis.c
  146. m68k-semi.c
  147. m68k.ld
  148. MAINTAINERS
  149. Makefile
  150. Makefile.dis
  151. Makefile.hw
  152. Makefile.objs
  153. Makefile.target
  154. Makefile.user
  155. microblaze-dis.c
  156. migration-exec.c
  157. migration-fd.c
  158. migration-tcp.c
  159. migration-unix.c
  160. migration.c
  161. migration.h
  162. mips-dis.c
  163. mips.ld
  164. module.c
  165. module.h
  166. monitor.c
  167. monitor.h
  168. nbd.c
  169. nbd.h
  170. net-checksum.c
  171. net.c
  172. net.h
  173. notify.c
  174. notify.h
  175. os-posix.c
  176. os-win32.c
  177. osdep.c
  178. osdep.h
  179. path.c
  180. pci-ids.txt
  181. poison.h
  182. posix-aio-compat.c
  183. ppc-dis.c
  184. ppc.ld
  185. ppc64.ld
  186. qbool.c
  187. qbool.h
  188. qdict-test-data.txt
  189. qdict.c
  190. qdict.h
  191. qemu-aio.h
  192. qemu-barrier.h
  193. qemu-binfmt-conf.sh
  194. qemu-char.c
  195. qemu-char.h
  196. qemu-common.h
  197. qemu-config.c
  198. qemu-config.h
  199. qemu-doc.texi
  200. qemu-error.c
  201. qemu-error.h
  202. qemu-img-cmds.hx
  203. qemu-img.c
  204. qemu-img.texi
  205. qemu-io.c
  206. qemu-lock.h
  207. qemu-log.h
  208. qemu-malloc.c
  209. qemu-monitor.hx
  210. qemu-nbd.c
  211. qemu-nbd.texi
  212. qemu-objects.h
  213. qemu-option.c
  214. qemu-option.h
  215. qemu-options.h
  216. qemu-options.hx
  217. qemu-os-posix.h
  218. qemu-os-win32.h
  219. qemu-queue.h
  220. qemu-sockets.c
  221. qemu-tech.texi
  222. qemu-thread.c
  223. qemu-thread.h
  224. qemu-timer.c
  225. qemu-timer.h
  226. qemu-tool.c
  227. qemu-x509.h
  228. qemu.sasl
  229. qemu_socket.h
  230. qerror.c
  231. qerror.h
  232. qfloat.c
  233. qfloat.h
  234. qint.c
  235. qint.h
  236. qjson.c
  237. qjson.h
  238. qlist.c
  239. qlist.h
  240. qobject.h
  241. qstring.c
  242. qstring.h
  243. readline.c
  244. readline.h
  245. README
  246. rules.mak
  247. rwhandler.c
  248. rwhandler.h
  249. s390-dis.c
  250. s390.ld
  251. savevm.c
  252. sdl.c
  253. sdl_keysym.h
  254. sdl_zoom.c
  255. sdl_zoom.h
  256. sdl_zoom_template.h
  257. sh4-dis.c
  258. softmmu-semi.h
  259. softmmu_defs.h
  260. softmmu_exec.h
  261. softmmu_header.h
  262. softmmu_template.h
  263. sparc-dis.c
  264. sparc.ld
  265. sparc64.ld
  266. sysemu.h
  267. targphys.h
  268. tcg-runtime.c
  269. texi2pod.pl
  270. thunk.c
  271. thunk.h
  272. TODO
  273. translate-all.c
  274. uboot_image.h
  275. usb-bsd.c
  276. usb-linux.c
  277. usb-stub.c
  278. VERSION
  279. vgafont.h
  280. vl.c
  281. vnc-auth-sasl.c
  282. vnc-auth-sasl.h
  283. vnc-auth-vencrypt.c
  284. vnc-auth-vencrypt.h
  285. vnc-encoding-hextile.c
  286. vnc-encoding-tight.c
  287. vnc-encoding-tight.h
  288. vnc-encoding-zlib.c
  289. vnc-tls.c
  290. vnc-tls.h
  291. vnc.c
  292. vnc.h
  293. vnc_keysym.h
  294. vnchextile.h
  295. x86_64.ld
  296. x_keymap.c
  297. x_keymap.h