diff options
Diffstat (limited to 'src/core/lib/iomgr/tcp_server_posix.c')
-rw-r--r-- | src/core/lib/iomgr/tcp_server_posix.c | 143 |
1 files changed, 86 insertions, 57 deletions
diff --git a/src/core/lib/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c index 909e34abc7..6fb547bb36 100644 --- a/src/core/lib/iomgr/tcp_server_posix.c +++ b/src/core/lib/iomgr/tcp_server_posix.c @@ -59,6 +59,8 @@ #include <grpc/support/string_util.h> #include <grpc/support/sync.h> #include <grpc/support/time.h> +#include <grpc/support/useful.h> + #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/iomgr/socket_utils_posix.h" @@ -133,7 +135,8 @@ struct grpc_tcp_server { size_t next_pollset_to_assign; }; -grpc_tcp_server *grpc_tcp_server_create(grpc_closure *shutdown_complete) { +grpc_error *grpc_tcp_server_create(grpc_closure *shutdown_complete, + grpc_tcp_server **server) { grpc_tcp_server *s = gpr_malloc(sizeof(grpc_tcp_server)); gpr_ref_init(&s->refs, 1); gpr_mu_init(&s->mu); @@ -149,12 +152,13 @@ grpc_tcp_server *grpc_tcp_server_create(grpc_closure *shutdown_complete) { s->tail = NULL; s->nports = 0; s->next_pollset_to_assign = 0; - return s; + *server = s; + return GRPC_ERROR_NONE; } static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (s->shutdown_complete != NULL) { - grpc_exec_ctx_enqueue(exec_ctx, s->shutdown_complete, true, NULL); + grpc_exec_ctx_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE, NULL); } gpr_mu_destroy(&s->mu); @@ -169,7 +173,7 @@ static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { } static void destroyed_port(grpc_exec_ctx *exec_ctx, void *server, - bool success) { + grpc_error *error) { grpc_tcp_server *s = server; gpr_mu_lock(&s->mu); s->destroyed_ports++; @@ -263,61 +267,68 @@ static int get_max_accept_queue_size(void) { } /* Prepare a recently-created socket for listening. */ -static int prepare_socket(int fd, const struct sockaddr *addr, - size_t addr_len) { +static grpc_error *prepare_socket(int fd, const struct sockaddr *addr, + size_t addr_len, int *port) { struct sockaddr_storage sockname_temp; socklen_t sockname_len; - - if (fd < 0) { - goto error; - } - - if (!grpc_set_socket_nonblocking(fd, 1) || !grpc_set_socket_cloexec(fd, 1) || - (!grpc_is_unix_socket(addr) && (!grpc_set_socket_low_latency(fd, 1) || - !grpc_set_socket_reuse_addr(fd, 1))) || - !grpc_set_socket_no_sigpipe_if_possible(fd)) { - gpr_log(GPR_ERROR, "Unable to configure socket %d: %s", fd, - strerror(errno)); - goto error; + grpc_error *err = GRPC_ERROR_NONE; + + GPR_ASSERT(fd >= 0); + + err = grpc_set_socket_nonblocking(fd, 1); + if (err != GRPC_ERROR_NONE) goto error; + err = grpc_set_socket_cloexec(fd, 1); + if (err != GRPC_ERROR_NONE) goto error; + if (!grpc_is_unix_socket(addr)) { + err = grpc_set_socket_low_latency(fd, 1); + if (err != GRPC_ERROR_NONE) goto error; + err = grpc_set_socket_reuse_addr(fd, 1); + if (err != GRPC_ERROR_NONE) goto error; } + err = grpc_set_socket_no_sigpipe_if_possible(fd); + if (err != GRPC_ERROR_NONE) goto error; GPR_ASSERT(addr_len < ~(socklen_t)0); if (bind(fd, addr, (socklen_t)addr_len) < 0) { - char *addr_str; - grpc_sockaddr_to_string(&addr_str, addr, 0); - gpr_log(GPR_ERROR, "bind addr=%s: %s", addr_str, strerror(errno)); - gpr_free(addr_str); + err = GRPC_OS_ERROR(errno, "bind"); goto error; } if (listen(fd, get_max_accept_queue_size()) < 0) { - gpr_log(GPR_ERROR, "listen: %s", strerror(errno)); + err = GRPC_OS_ERROR(errno, "listen"); goto error; } sockname_len = sizeof(sockname_temp); if (getsockname(fd, (struct sockaddr *)&sockname_temp, &sockname_len) < 0) { + err = GRPC_OS_ERROR(errno, "getsockname"); goto error; } - return grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); + *port = grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); + return GRPC_ERROR_NONE; error: + GPR_ASSERT(err != GRPC_ERROR_NONE); if (fd >= 0) { close(fd); } - return -1; + grpc_error *ret = grpc_error_set_int( + GRPC_ERROR_CREATE_REFERENCING("Unable to configure socket", &err, 1), + GRPC_ERROR_INT_FD, fd); + GRPC_ERROR_UNREF(err); + return ret; } /* event manager callback when reads are ready */ -static void on_read(grpc_exec_ctx *exec_ctx, void *arg, bool success) { +static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { grpc_tcp_listener *sp = arg; grpc_tcp_server_acceptor acceptor = {sp->server, sp->port_index, sp->fd_index}; grpc_pollset *read_notifier_pollset = NULL; grpc_fd *fdobj; - if (!success) { + if (err != GRPC_ERROR_NONE) { goto error; } @@ -386,18 +397,19 @@ error: } } -static grpc_tcp_listener *add_socket_to_server(grpc_tcp_server *s, int fd, - const struct sockaddr *addr, - size_t addr_len, - unsigned port_index, - unsigned fd_index) { +static grpc_error *add_socket_to_server(grpc_tcp_server *s, int fd, + const struct sockaddr *addr, + size_t addr_len, unsigned port_index, + unsigned fd_index, + grpc_tcp_listener **listener) { grpc_tcp_listener *sp = NULL; - int port; + int port = -1; char *addr_str; char *name; - port = prepare_socket(fd, addr, addr_len); - if (port >= 0) { + grpc_error *err = prepare_socket(fd, addr, addr_len, &port); + if (err == GRPC_ERROR_NONE) { + GPR_ASSERT(port > 0); grpc_sockaddr_to_string(&addr_str, (struct sockaddr *)&addr, 1); gpr_asprintf(&name, "tcp-server-listener:%s", addr_str); gpr_mu_lock(&s->mu); @@ -427,11 +439,12 @@ static grpc_tcp_listener *add_socket_to_server(grpc_tcp_server *s, int fd, gpr_free(name); } - return sp; + *listener = sp; + return err; } -int grpc_tcp_server_add_port(grpc_tcp_server *s, const void *addr, - size_t addr_len) { +grpc_error *grpc_tcp_server_add_port(grpc_tcp_server *s, const void *addr, + size_t addr_len, int *out_port) { grpc_tcp_listener *sp; grpc_tcp_listener *sp2 = NULL; int fd; @@ -446,6 +459,7 @@ int grpc_tcp_server_add_port(grpc_tcp_server *s, const void *addr, int port; unsigned port_index = 0; unsigned fd_index = 0; + grpc_error *errs[2] = {GRPC_ERROR_NONE, GRPC_ERROR_NONE}; if (s->tail != NULL) { port_index = s->tail->port_index + 1; } @@ -484,33 +498,35 @@ int grpc_tcp_server_add_port(grpc_tcp_server *s, const void *addr, /* Try listening on IPv6 first. */ addr = (struct sockaddr *)&wild6; addr_len = sizeof(wild6); - fd = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode); - sp = add_socket_to_server(s, fd, addr, addr_len, port_index, fd_index); - if (fd >= 0 && dsmode == GRPC_DSMODE_DUALSTACK) { - goto done; - } - if (sp != NULL) { - ++fd_index; - } - /* If we didn't get a dualstack socket, also listen on 0.0.0.0. */ - if (port == 0 && sp != NULL) { - grpc_sockaddr_set_port((struct sockaddr *)&wild4, sp->port); + errs[0] = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode, &fd); + if (errs[0] == GRPC_ERROR_NONE) { + errs[0] = add_socket_to_server(s, fd, addr, addr_len, port_index, + fd_index, &sp); + if (fd >= 0 && dsmode == GRPC_DSMODE_DUALSTACK) { + goto done; + } + if (sp != NULL) { + ++fd_index; + } + /* If we didn't get a dualstack socket, also listen on 0.0.0.0. */ + if (port == 0 && sp != NULL) { + grpc_sockaddr_set_port((struct sockaddr *)&wild4, sp->port); + } } addr = (struct sockaddr *)&wild4; addr_len = sizeof(wild4); } - fd = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode); - if (fd < 0) { - gpr_log(GPR_ERROR, "Unable to create socket: %s", strerror(errno)); - } else { + errs[1] = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode, &fd); + if (errs[1] == GRPC_ERROR_NONE) { if (dsmode == GRPC_DSMODE_IPV4 && grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) { addr = (struct sockaddr *)&addr4_copy; addr_len = sizeof(addr4_copy); } sp2 = sp; - sp = add_socket_to_server(s, fd, addr, addr_len, port_index, fd_index); + errs[1] = + add_socket_to_server(s, fd, addr, addr_len, port_index, fd_index, &sp); if (sp2 != NULL && sp != NULL) { sp2->sibling = sp; sp->is_sibling = 1; @@ -520,9 +536,21 @@ int grpc_tcp_server_add_port(grpc_tcp_server *s, const void *addr, done: gpr_free(allocated_addr); if (sp != NULL) { - return sp->port; + *out_port = sp->port; + GRPC_ERROR_UNREF(errs[0]); + GRPC_ERROR_UNREF(errs[1]); + return GRPC_ERROR_NONE; } else { - return -1; + *out_port = -1; + char *addr_str = grpc_sockaddr_to_uri(addr); + grpc_error *err = grpc_error_set_str( + GRPC_ERROR_CREATE_REFERENCING("Failed to add port to server", errs, + GPR_ARRAY_SIZE(errs)), + GRPC_ERROR_STR_TARGET_ADDRESS, addr_str); + GRPC_ERROR_UNREF(errs[0]); + GRPC_ERROR_UNREF(errs[1]); + gpr_free(addr_str); + return err; } } @@ -591,7 +619,8 @@ grpc_tcp_server *grpc_tcp_server_ref(grpc_tcp_server *s) { void grpc_tcp_server_shutdown_starting_add(grpc_tcp_server *s, grpc_closure *shutdown_starting) { gpr_mu_lock(&s->mu); - grpc_closure_list_add(&s->shutdown_starting, shutdown_starting, 1); + grpc_closure_list_append(&s->shutdown_starting, shutdown_starting, + GRPC_ERROR_NONE); gpr_mu_unlock(&s->mu); } |