diff options
author | Lennart Poettering <lennart@poettering.net> | 2009-02-12 21:45:17 +0100 |
---|---|---|
committer | Lennart Poettering <lennart@poettering.net> | 2009-02-12 21:45:17 +0100 |
commit | d9e3abaf83ab2cf28ff6929495880cde0d9a933b (patch) | |
tree | b8144c9977fa7a9fd67f74eb40e4da30fc998166 /src/modules/bluetooth | |
parent | 923dc1ba4786451ac47686567b7533c16acb6414 (diff) |
the service fd is a stream socket, so handle things accordingly
Diffstat (limited to 'src/modules/bluetooth')
-rw-r--r-- | src/modules/bluetooth/module-bluetooth-device.c | 95 |
1 files changed, 54 insertions, 41 deletions
diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c index b04834da..294fc662 100644 --- a/src/modules/bluetooth/module-bluetooth-device.c +++ b/src/modules/bluetooth/module-bluetooth-device.c @@ -154,17 +154,19 @@ struct userdata { pa_bluetooth_device *device; - int write_type, read_type; + int stream_write_type, stream_read_type; + int service_write_type, service_read_type; }; static int init_bt(struct userdata *u); static int init_profile(struct userdata *u); -static int service_send(int fd, const bt_audio_msg_header_t *msg) { +static int service_send(struct userdata *u, const bt_audio_msg_header_t *msg) { size_t length; ssize_t r; - pa_assert(fd >= 0); + pa_assert(u); + pa_assert(u->service_fd >= 0); pa_assert(msg); length = msg->length ? msg->length : BT_SUGGESTED_BUFFER_SIZE; @@ -173,52 +175,59 @@ static int service_send(int fd, const bt_audio_msg_header_t *msg) { pa_strnull(bt_audio_strtype(msg->type)), pa_strnull(bt_audio_strname(msg->name))); - if ((r = send(fd, msg, length, 0)) == (ssize_t) length) + if ((r = pa_loop_write(u->service_fd, msg, length, &u->service_write_type)) == (ssize_t) length) return 0; if (r < 0) pa_log_error("Error sending data to audio service: %s", pa_cstrerror(errno)); else - pa_log_error("Short send()"); + pa_log_error("Short write()"); return -1; } -static int service_recv(int fd, bt_audio_msg_header_t *msg, size_t expected_length) { - size_t length; +static int service_recv(struct userdata *u, bt_audio_msg_header_t *msg, size_t room) { ssize_t r; - pa_assert(fd >= 0); + pa_assert(u); + pa_assert(u->service_fd >= 0); pa_assert(msg); - length = expected_length ? expected_length : BT_SUGGESTED_BUFFER_SIZE; - - if (length < sizeof(bt_audio_error_t)) - length = sizeof(bt_audio_error_t); + if (room <= 0) + room = BT_SUGGESTED_BUFFER_SIZE; pa_log_debug("Trying to receive message from audio service..."); - r = recv(fd, msg, length, 0); + /* First, read the header */ + if ((r = pa_loop_read(u->service_fd, msg, sizeof(*msg), &u->service_read_type)) != sizeof(*msg)) + goto read_fail; - if (r > 0 && (r == (ssize_t) length || expected_length <= 0)) { + if (msg->length < sizeof(*msg)) { + pa_log_error("Invalid message size."); + return -1; + } - if ((size_t) r < sizeof(*msg)) { - pa_log_error("Packet read too small."); - return -1; - } + /* Second, read the payload */ + if (msg->length > sizeof(*msg)) { - if (r != msg->length) { - pa_log_error("Size read doesn't match header size."); - return -1; - } + size_t remains = msg->length - sizeof(*msg); - pa_log_debug("Received %s <- %s", - pa_strnull(bt_audio_strtype(msg->type)), - pa_strnull(bt_audio_strname(msg->name))); + if ((r = pa_loop_read(u->service_fd, + (uint8_t*) msg + sizeof(*msg), + remains, + &u->service_read_type)) != (ssize_t) remains) + goto read_fail; - return 0; } + pa_log_debug("Received %s <- %s", + pa_strnull(bt_audio_strtype(msg->type)), + pa_strnull(bt_audio_strname(msg->name))); + + return 0; + +read_fail: + if (r < 0) pa_log_error("Error receiving data from audio service: %s", pa_cstrerror(errno)); else @@ -227,16 +236,19 @@ static int service_recv(int fd, bt_audio_msg_header_t *msg, size_t expected_leng return -1; } -static ssize_t service_expect(int fd, bt_audio_msg_header_t *rsp, uint8_t expected_name, size_t expected_length) { +static ssize_t service_expect(struct userdata*u, bt_audio_msg_header_t *rsp, size_t room, uint8_t expected_name, size_t expected_size) { int r; - pa_assert(fd >= 0); + pa_assert(u); + pa_assert(u->service_fd >= 0); pa_assert(rsp); - if ((r = service_recv(fd, rsp, expected_length)) < 0) + if ((r = service_recv(u, rsp, room)) < 0) return r; - if (rsp->type != BT_RESPONSE || rsp->name != expected_name) { + if ((rsp->type != BT_INDICATION && rsp->type != BT_RESPONSE) || + rsp->name != expected_name || + (expected_size > 0 && rsp->length != expected_size)) { if (rsp->type == BT_ERROR && rsp->length == sizeof(bt_audio_error_t)) pa_log_error("Received error condition: %s", pa_cstrerror(((bt_audio_error_t*) rsp)->posix_errno)); @@ -328,10 +340,10 @@ static int get_caps(struct userdata *u) { } msg.getcaps_req.flags = BT_FLAG_AUTOCONNECT; - if (service_send(u->service_fd, &msg.getcaps_req.h) < 0) + if (service_send(u, &msg.getcaps_req.h) < 0) return -1; - if (service_expect(u->service_fd, &msg.getcaps_rsp.h, BT_GET_CAPABILITIES, 0) < 0) + if (service_expect(u, &msg.getcaps_rsp.h, sizeof(msg), BT_GET_CAPABILITIES, 0) < 0) return -1; return parse_caps(u, &msg.getcaps_rsp); @@ -610,10 +622,10 @@ static int set_conf(struct userdata *u) { msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec); } - if (service_send(u->service_fd, &msg.setconf_req.h) < 0) + if (service_send(u, &msg.setconf_req.h) < 0) return -1; - if (service_expect(u->service_fd, &msg.setconf_rsp.h, BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0) + if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0) return -1; if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_A2DP) || @@ -660,13 +672,13 @@ static int setup_stream_fd(struct userdata *u) { msg.start_req.h.name = BT_START_STREAM; msg.start_req.h.length = sizeof(msg.start_req); - if (service_send(u->service_fd, &msg.start_req.h) < 0) + if (service_send(u, &msg.start_req.h) < 0) return -1; - if (service_expect(u->service_fd, &msg.rsp, BT_START_STREAM, sizeof(msg.start_rsp)) < 0) + if (service_expect(u, &msg.rsp, sizeof(msg), BT_START_STREAM, sizeof(msg.start_rsp)) < 0) return -1; - if (service_expect(u->service_fd, &msg.rsp, BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0) + if (service_expect(u, &msg.rsp, sizeof(msg), BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0) return -1; if ((u->stream_fd = bt_audio_service_get_data_fd(u->service_fd)) < 0) { @@ -776,7 +788,7 @@ static int hsp_process_render(struct userdata *u) { const void *p; p = (const uint8_t*) pa_memblock_acquire(memchunk.memblock) + memchunk.index; - l = pa_write(u->stream_fd, p, memchunk.length, &u->write_type); + l = pa_write(u->stream_fd, p, memchunk.length, &u->stream_write_type); pa_memblock_release(memchunk.memblock); pa_log_debug("Memblock written to socket: %lli bytes", (long long) l); @@ -825,7 +837,7 @@ static int hsp_process_push(struct userdata *u) { void *p; p = pa_memblock_acquire(memchunk.memblock); - l = pa_read(u->stream_fd, p, pa_memblock_get_length(memchunk.memblock), &u->read_type); + l = pa_read(u->stream_fd, p, pa_memblock_get_length(memchunk.memblock), &u->stream_read_type); pa_memblock_release(memchunk.memblock); if (l <= 0) { @@ -941,7 +953,7 @@ static int a2dp_process_render(struct userdata *u) { for (;;) { ssize_t l; - l = pa_write(u->stream_fd, p, left, &u->write_type); + l = pa_write(u->stream_fd, p, left, &u->stream_write_type); /* pa_log_debug("write: requested %lu bytes; written %li bytes; mtu=%li", (unsigned long) left, (long) l, (unsigned long) u->link_mtu); */ pa_assert(l != 0); @@ -1417,7 +1429,8 @@ static int init_bt(struct userdata *u) { u->service_fd = -1; } - u->write_type = u->read_type = 0; + u->stream_write_type = u->stream_read_type = 0; + u->service_write_type = u->stream_write_type = 0; /* connect to the bluez audio service */ if ((u->service_fd = bt_audio_service_open()) < 0) { |