diff options
Diffstat (limited to 'qemu/contrib/ivshmem-client/main.c')
| -rw-r--r-- | qemu/contrib/ivshmem-client/main.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/qemu/contrib/ivshmem-client/main.c b/qemu/contrib/ivshmem-client/main.c deleted file mode 100644 index 33ae1daa1..000000000 --- a/qemu/contrib/ivshmem-client/main.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * Copyright 6WIND S.A., 2014 - * - * This work is licensed under the terms of the GNU GPL, version 2 or - * (at your option) any later version. See the COPYING file in the - * top-level directory. - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" - -#include "ivshmem-client.h" - -#define IVSHMEM_CLIENT_DEFAULT_VERBOSE 0 -#define IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH "/tmp/ivshmem_socket" - -typedef struct IvshmemClientArgs { - bool verbose; - const char *unix_sock_path; -} IvshmemClientArgs; - -/* show ivshmem_client_usage and exit with given error code */ -static void -ivshmem_client_usage(const char *name, int code) -{ - fprintf(stderr, "%s [opts]\n", name); - fprintf(stderr, " -h: show this help\n"); - fprintf(stderr, " -v: verbose mode\n"); - fprintf(stderr, " -S <unix_sock_path>: path to the unix socket\n" - " to connect to.\n" - " default=%s\n", IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH); - exit(code); -} - -/* parse the program arguments, exit on error */ -static void -ivshmem_client_parse_args(IvshmemClientArgs *args, int argc, char *argv[]) -{ - int c; - - while ((c = getopt(argc, argv, - "h" /* help */ - "v" /* verbose */ - "S:" /* unix_sock_path */ - )) != -1) { - - switch (c) { - case 'h': /* help */ - ivshmem_client_usage(argv[0], 0); - break; - - case 'v': /* verbose */ - args->verbose = 1; - break; - - case 'S': /* unix_sock_path */ - args->unix_sock_path = optarg; - break; - - default: - ivshmem_client_usage(argv[0], 1); - break; - } - } -} - -/* show command line help */ -static void -ivshmem_client_cmdline_help(void) -{ - printf("dump: dump peers (including us)\n" - "int <peer> <vector>: notify one vector on a peer\n" - "int <peer> all: notify all vectors of a peer\n" - "int all: notify all vectors of all peers (excepting us)\n"); -} - -/* read stdin and handle commands */ -static int -ivshmem_client_handle_stdin_command(IvshmemClient *client) -{ - IvshmemClientPeer *peer; - char buf[128]; - char *s, *token; - int ret; - int peer_id, vector; - - memset(buf, 0, sizeof(buf)); - ret = read(0, buf, sizeof(buf) - 1); - if (ret < 0) { - return -1; - } - - s = buf; - while ((token = strsep(&s, "\n\r;")) != NULL) { - if (!strcmp(token, "")) { - continue; - } - if (!strcmp(token, "?")) { - ivshmem_client_cmdline_help(); - } - if (!strcmp(token, "help")) { - ivshmem_client_cmdline_help(); - } else if (!strcmp(token, "dump")) { - ivshmem_client_dump(client); - } else if (!strcmp(token, "int all")) { - ivshmem_client_notify_broadcast(client); - } else if (sscanf(token, "int %d %d", &peer_id, &vector) == 2) { - peer = ivshmem_client_search_peer(client, peer_id); - if (peer == NULL) { - printf("cannot find peer_id = %d\n", peer_id); - continue; - } - ivshmem_client_notify(client, peer, vector); - } else if (sscanf(token, "int %d all", &peer_id) == 1) { - peer = ivshmem_client_search_peer(client, peer_id); - if (peer == NULL) { - printf("cannot find peer_id = %d\n", peer_id); - continue; - } - ivshmem_client_notify_all_vects(client, peer); - } else { - printf("invalid command, type help\n"); - } - } - - printf("cmd> "); - fflush(stdout); - return 0; -} - -/* listen on stdin (command line), on unix socket (notifications of new - * and dead peers), and on eventfd (IRQ request) */ -static int -ivshmem_client_poll_events(IvshmemClient *client) -{ - fd_set fds; - int ret, maxfd; - - while (1) { - - FD_ZERO(&fds); - FD_SET(0, &fds); /* add stdin in fd_set */ - maxfd = 1; - - ivshmem_client_get_fds(client, &fds, &maxfd); - - ret = select(maxfd, &fds, NULL, NULL, NULL); - if (ret < 0) { - if (errno == EINTR) { - continue; - } - - fprintf(stderr, "select error: %s\n", strerror(errno)); - break; - } - if (ret == 0) { - continue; - } - - if (FD_ISSET(0, &fds) && - ivshmem_client_handle_stdin_command(client) < 0 && errno != EINTR) { - fprintf(stderr, "ivshmem_client_handle_stdin_command() failed\n"); - break; - } - - if (ivshmem_client_handle_fds(client, &fds, maxfd) < 0) { - fprintf(stderr, "ivshmem_client_handle_fds() failed\n"); - break; - } - } - - return ret; -} - -/* callback when we receive a notification (just display it) */ -static void -ivshmem_client_notification_cb(const IvshmemClient *client, - const IvshmemClientPeer *peer, - unsigned vect, void *arg) -{ - (void)client; - (void)arg; - printf("receive notification from peer_id=%" PRId64 " vector=%u\n", - peer->id, vect); -} - -int -main(int argc, char *argv[]) -{ - struct sigaction sa; - IvshmemClient client; - IvshmemClientArgs args = { - .verbose = IVSHMEM_CLIENT_DEFAULT_VERBOSE, - .unix_sock_path = IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH, - }; - - /* parse arguments, will exit on error */ - ivshmem_client_parse_args(&args, argc, argv); - - /* Ignore SIGPIPE, see this link for more info: - * http://www.mail-archive.com/libevent-users@monkey.org/msg01606.html */ - sa.sa_handler = SIG_IGN; - sa.sa_flags = 0; - if (sigemptyset(&sa.sa_mask) == -1 || - sigaction(SIGPIPE, &sa, 0) == -1) { - perror("failed to ignore SIGPIPE; sigaction"); - return 1; - } - - ivshmem_client_cmdline_help(); - printf("cmd> "); - fflush(stdout); - - if (ivshmem_client_init(&client, args.unix_sock_path, - ivshmem_client_notification_cb, NULL, - args.verbose) < 0) { - fprintf(stderr, "cannot init client\n"); - return 1; - } - - while (1) { - if (ivshmem_client_connect(&client) < 0) { - fprintf(stderr, "cannot connect to server, retry in 1 second\n"); - sleep(1); - continue; - } - - fprintf(stdout, "listen on server socket %d\n", client.sock_fd); - - if (ivshmem_client_poll_events(&client) == 0) { - continue; - } - - /* disconnected from server, reset all peers */ - fprintf(stdout, "disconnected from server\n"); - - ivshmem_client_close(&client); - } - - return 0; -} |