vnc: threaded VNC server

Implement a threaded VNC server using the producer-consumer model.
The main thread will push encoding jobs (a list a rectangles to update)
in a queue, and the VNC worker thread will consume that queue and send
framebuffer updates to the output buffer.

The threaded VNC server can be enabled with ./configure --enable-vnc-thread.

If you don't want it, just use ./configure --disable-vnc-thread and a syncrhonous
queue of job will be used (which as exactly the same behavior as the old queue).
If you disable the VNC thread, all thread related code will not be built and there will
be no overhead.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
7 files changed
tree: 5e7c71d3f68ed04d33ffc53a182c29cdbd8b5334
  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. ui/
  32. .gitignore
  33. .gitmodules
  34. a.out.h
  35. acl.c
  36. acl.h
  37. aes.c
  38. aes.h
  39. aio.c
  40. alpha-dis.c
  41. alpha.ld
  42. arch_init.c
  43. arch_init.h
  44. arm-dis.c
  45. arm-semi.c
  46. arm.ld
  47. async.c
  48. balloon.c
  49. balloon.h
  50. block-migration.c
  51. block-migration.h
  52. block.c
  53. block.h
  54. block_int.h
  55. blockdev.c
  56. blockdev.h
  57. bswap.h
  58. bt-host.c
  59. bt-host.h
  60. bt-vhci.c
  61. buffered_file.c
  62. buffered_file.h
  63. cache-utils.c
  64. cache-utils.h
  65. Changelog
  66. check-qdict.c
  67. check-qfloat.c
  68. check-qint.c
  69. check-qjson.c
  70. check-qlist.c
  71. check-qstring.c
  72. cmd.c
  73. cmd.h
  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. cursor.c
  90. cursor_hidden.xpm
  91. cursor_left_ptr.xpm
  92. cutils.c
  93. def-helper.h
  94. device_tree.c
  95. device_tree.h
  96. dis-asm.h
  97. disas.c
  98. disas.h
  99. dma-helpers.c
  100. dma.h
  101. dyngen-exec.h
  102. elf.h
  103. envlist.c
  104. envlist.h
  105. exec-all.h
  106. exec.c
  107. feature_to_c.sh
  108. gdbstub.c
  109. gdbstub.h
  110. gen-icount.h
  111. host-utils.c
  112. host-utils.h
  113. hpet.h
  114. hppa-dis.c
  115. hppa.ld
  116. hxtool
  117. i386-dis.c
  118. i386.ld
  119. ia64-dis.c
  120. ia64.ld
  121. input.c
  122. ioport-user.c
  123. ioport.c
  124. ioport.h
  125. iov.c
  126. iov.h
  127. json-lexer.c
  128. json-lexer.h
  129. json-parser.c
  130. json-parser.h
  131. json-streamer.c
  132. json-streamer.h
  133. kvm-all.c
  134. kvm-stub.c
  135. kvm.h
  136. libfdt_env.h
  137. LICENSE
  138. linux-aio.c
  139. m68k-dis.c
  140. m68k-semi.c
  141. m68k.ld
  142. MAINTAINERS
  143. Makefile
  144. Makefile.dis
  145. Makefile.hw
  146. Makefile.objs
  147. Makefile.target
  148. Makefile.user
  149. microblaze-dis.c
  150. migration-exec.c
  151. migration-fd.c
  152. migration-tcp.c
  153. migration-unix.c
  154. migration.c
  155. migration.h
  156. mips-dis.c
  157. mips.ld
  158. module.c
  159. module.h
  160. monitor.c
  161. monitor.h
  162. nbd.c
  163. nbd.h
  164. net-checksum.c
  165. net.c
  166. net.h
  167. notify.c
  168. notify.h
  169. os-posix.c
  170. os-win32.c
  171. osdep.c
  172. osdep.h
  173. path.c
  174. pci-ids.txt
  175. poison.h
  176. posix-aio-compat.c
  177. ppc-dis.c
  178. ppc.ld
  179. ppc64.ld
  180. qbool.c
  181. qbool.h
  182. qdict-test-data.txt
  183. qdict.c
  184. qdict.h
  185. qemu-aio.h
  186. qemu-barrier.h
  187. qemu-binfmt-conf.sh
  188. qemu-char.c
  189. qemu-char.h
  190. qemu-common.h
  191. qemu-config.c
  192. qemu-config.h
  193. qemu-doc.texi
  194. qemu-error.c
  195. qemu-error.h
  196. qemu-img-cmds.hx
  197. qemu-img.c
  198. qemu-img.texi
  199. qemu-io.c
  200. qemu-lock.h
  201. qemu-log.h
  202. qemu-malloc.c
  203. qemu-monitor.hx
  204. qemu-nbd.c
  205. qemu-nbd.texi
  206. qemu-objects.h
  207. qemu-option.c
  208. qemu-option.h
  209. qemu-options.h
  210. qemu-options.hx
  211. qemu-os-posix.h
  212. qemu-os-win32.h
  213. qemu-queue.h
  214. qemu-sockets.c
  215. qemu-tech.texi
  216. qemu-thread.c
  217. qemu-thread.h
  218. qemu-timer.c
  219. qemu-timer.h
  220. qemu-tool.c
  221. qemu-x509.h
  222. qemu.sasl
  223. qemu_socket.h
  224. qerror.c
  225. qerror.h
  226. qfloat.c
  227. qfloat.h
  228. qint.c
  229. qint.h
  230. qjson.c
  231. qjson.h
  232. qlist.c
  233. qlist.h
  234. qobject.h
  235. qstring.c
  236. qstring.h
  237. readline.c
  238. readline.h
  239. README
  240. rules.mak
  241. rwhandler.c
  242. rwhandler.h
  243. s390-dis.c
  244. s390.ld
  245. savevm.c
  246. sh4-dis.c
  247. softmmu-semi.h
  248. softmmu_defs.h
  249. softmmu_exec.h
  250. softmmu_header.h
  251. softmmu_template.h
  252. sparc-dis.c
  253. sparc.ld
  254. sparc64.ld
  255. sysemu.h
  256. targphys.h
  257. tcg-runtime.c
  258. texi2pod.pl
  259. thunk.c
  260. thunk.h
  261. TODO
  262. translate-all.c
  263. uboot_image.h
  264. usb-bsd.c
  265. usb-linux.c
  266. usb-stub.c
  267. VERSION
  268. vgafont.h
  269. vl.c
  270. x86_64.ld