+#include "httpd.h"
+
#include <assert.h>
+#include <byteswap.h>
+#include <endian.h>
#include <microhttpd.h>
+#include <netinet/in.h>
#include <stdio.h>
-#include <stdlib.h>
#include <string.h>
-
-#include <vector>
-
-#include "httpd.h"
+#include <sys/time.h>
+#include <time.h>
+#include <memory>
#include "defs.h"
-#include "flags.h"
-#include "timebase.h"
+#include "metacube2.h"
struct MHD_Connection;
struct MHD_Response;
{
}
+HTTPD::~HTTPD()
+{
+ if (mhd) {
+ MHD_quiesce_daemon(mhd);
+ for (Stream *stream : streams) {
+ stream->stop();
+ }
+ MHD_stop_daemon(mhd);
+ }
+}
+
void HTTPD::start(int port)
{
- MHD_start_daemon(MHD_USE_THREAD_PER_CONNECTION | MHD_USE_POLL_INTERNALLY | MHD_USE_DUAL_STACK,
- port,
- nullptr, nullptr,
- &answer_to_connection_thunk, this,
- MHD_OPTION_NOTIFY_COMPLETED, &request_completed_thunk, this,
- MHD_OPTION_END);
+ mhd = MHD_start_daemon(MHD_USE_THREAD_PER_CONNECTION | MHD_USE_POLL_INTERNALLY | MHD_USE_DUAL_STACK,
+ port,
+ nullptr, nullptr,
+ &answer_to_connection_thunk, this,
+ MHD_OPTION_NOTIFY_COMPLETED, nullptr, this,
+ MHD_OPTION_END);
+ if (mhd == nullptr) {
+ fprintf(stderr, "Warning: Could not open HTTP server. (Port already in use?)\n");
+ }
}
void HTTPD::add_data(const char *buf, size_t size, bool keyframe)
const char *version, const char *upload_data,
size_t *upload_data_size, void **con_cls)
{
- HTTPD::Stream *stream = new HTTPD::Stream;
+ // See if the URL ends in “.metacube”.
+ HTTPD::Stream::Framing framing;
+ if (strstr(url, ".metacube") == url + strlen(url) - strlen(".metacube")) {
+ framing = HTTPD::Stream::FRAMING_METACUBE;
+ } else {
+ framing = HTTPD::Stream::FRAMING_RAW;
+ }
+
+ HTTPD::Stream *stream = new HTTPD::Stream(this, framing);
stream->add_data(header.data(), header.size(), Stream::DATA_TYPE_HEADER);
{
unique_lock<mutex> lock(streams_mutex);
// Does not strictly have to be equal to MUX_BUFFER_SIZE.
MHD_Response *response = MHD_create_response_from_callback(
(size_t)-1, MUX_BUFFER_SIZE, &HTTPD::Stream::reader_callback_thunk, stream, &HTTPD::free_stream);
+
+ // TODO: Content-type?
+ if (framing == HTTPD::Stream::FRAMING_METACUBE) {
+ MHD_add_response_header(response, "Content-encoding", "metacube");
+ }
int ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
- //MHD_destroy_response(response);
+ MHD_destroy_response(response); // Only decreases the refcount; actual free is after the request is done.
return ret;
}
void HTTPD::free_stream(void *cls)
{
- // FIXME: When is this actually called, if ever?
- // Also, shouldn't we remove it from streams?
HTTPD::Stream *stream = (HTTPD::Stream *)cls;
- delete stream;
-}
-
-void HTTPD::request_completed_thunk(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe)
-{
- HTTPD *httpd = (HTTPD *)cls;
- return httpd->request_completed(connection, con_cls, toe);
-}
-
-void HTTPD::request_completed(struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe)
-{
- if (con_cls == nullptr) {
- // Request was never set up.
- return;
- }
- HTTPD::Stream *stream = (HTTPD::Stream *)*con_cls;
+ HTTPD *httpd = stream->get_parent();
{
- unique_lock<mutex> lock(streams_mutex);
+ unique_lock<mutex> lock(httpd->streams_mutex);
delete stream;
- streams.erase(stream);
+ httpd->streams.erase(stream);
}
}
ssize_t HTTPD::Stream::reader_callback(uint64_t pos, char *buf, size_t max)
{
unique_lock<mutex> lock(buffer_mutex);
- has_buffered_data.wait(lock, [this]{ return !buffered_data.empty(); });
+ has_buffered_data.wait(lock, [this]{ return should_quit || !buffered_data.empty(); });
+ if (should_quit) {
+ return 0;
+ }
ssize_t ret = 0;
while (max > 0 && !buffered_data.empty()) {
}
unique_lock<mutex> lock(buffer_mutex);
+
+ if (framing == FRAMING_METACUBE) {
+ metacube2_block_header hdr;
+ memcpy(hdr.sync, METACUBE2_SYNC, sizeof(hdr.sync));
+ hdr.size = htonl(buf_size);
+ int flags = 0;
+ if (data_type == DATA_TYPE_HEADER) {
+ flags |= METACUBE_FLAGS_HEADER;
+ } else if (data_type == DATA_TYPE_OTHER) {
+ flags |= METACUBE_FLAGS_NOT_SUITABLE_FOR_STREAM_START;
+ }
+ hdr.flags = htons(flags);
+ hdr.csum = htons(metacube2_compute_crc(&hdr));
+ buffered_data.emplace_back((char *)&hdr, sizeof(hdr));
+ }
buffered_data.emplace_back(buf, buf_size);
+
+ // Send a Metacube2 timestamp every keyframe.
+ if (framing == FRAMING_METACUBE && data_type == DATA_TYPE_KEYFRAME) {
+ timespec now;
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ metacube2_timestamp_packet packet;
+ packet.type = htobe64(METACUBE_METADATA_TYPE_ENCODER_TIMESTAMP);
+ packet.tv_sec = htobe64(now.tv_sec);
+ packet.tv_nsec = htobe64(now.tv_nsec);
+
+ metacube2_block_header hdr;
+ memcpy(hdr.sync, METACUBE2_SYNC, sizeof(hdr.sync));
+ hdr.size = htonl(sizeof(packet));
+ hdr.flags = htons(METACUBE_FLAGS_METADATA);
+ hdr.csum = htons(metacube2_compute_crc(&hdr));
+ buffered_data.emplace_back((char *)&hdr, sizeof(hdr));
+ buffered_data.emplace_back((char *)&packet, sizeof(packet));
+ }
+
has_buffered_data.notify_all();
}
+void HTTPD::Stream::stop()
+{
+ unique_lock<mutex> lock(buffer_mutex);
+ should_quit = true;
+ has_buffered_data.notify_all();
+}
projects / nageru / blobdiff