diff options
author | Amit Shah <amit.shah@redhat.com> | 2011-03-21 20:32:58 +0100 |
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committer | Hans de Goede <hdegoede@redhat.com> | 2012-11-01 16:22:11 +0100 |
commit | 2b53b775c42f7dcdb3d17d075395308b296b4630 (patch) | |
tree | 3d85f67245ad36da35e4195bccbc6c90d6287554 | |
parent | 6be63f8f990116e95a1349421446e92694450202 (diff) |
iohandlers: Add enable/disable_write_fd_handler() functions
These will be used to provide a cleaner API for the nonblocking case.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
-rw-r--r-- | iohandler.c | 35 | ||||
-rw-r--r-- | main-loop.h | 3 |
2 files changed, 38 insertions, 0 deletions
diff --git a/iohandler.c b/iohandler.c index a2d871bb9..c00fecd46 100644 --- a/iohandler.c +++ b/iohandler.c @@ -45,6 +45,41 @@ typedef struct IOHandlerRecord { static QLIST_HEAD(, IOHandlerRecord) io_handlers = QLIST_HEAD_INITIALIZER(io_handlers); +static IOHandlerRecord *find_iohandler(int fd) +{ + IOHandlerRecord *ioh; + + QLIST_FOREACH(ioh, &io_handlers, next) { + if (ioh->fd == fd) { + return ioh; + } + } + return NULL; +} + +void enable_write_fd_handler(int fd, IOHandler *fd_write) +{ + IOHandlerRecord *ioh; + + ioh = find_iohandler(fd); + if (!ioh) { + return; + } + + ioh->fd_write = fd_write; +} + +void disable_write_fd_handler(int fd) +{ + IOHandlerRecord *ioh; + + ioh = find_iohandler(fd); + if (!ioh) { + return; + } + + ioh->fd_write = NULL; +} /* XXX: fd_read_poll should be suppressed, but an API change is necessary in the character devices to suppress fd_can_read(). */ diff --git a/main-loop.h b/main-loop.h index dce1cd9d7..eb3127348 100644 --- a/main-loop.h +++ b/main-loop.h @@ -175,6 +175,9 @@ typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size); typedef int IOCanReadHandler(void *opaque); typedef void IOHandler(void *opaque); +void enable_write_fd_handler(int fd, IOHandler *fd_write); +void disable_write_fd_handler(int fd); + /** * qemu_set_fd_handler2: Register a file descriptor with the main loop * |