-#include <arpa/inet.h>
+#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 "metacube2.h"
-#include "timebase.h"
+#include "metrics.h"
struct MHD_Connection;
struct MHD_Response;
HTTPD::~HTTPD()
{
- MHD_quiesce_daemon(mhd);
- for (Stream *stream : streams) {
- stream->stop();
+ if (mhd) {
+ MHD_quiesce_daemon(mhd);
+ for (Stream *stream : streams) {
+ stream->stop();
+ }
+ MHD_stop_daemon(mhd);
}
- MHD_stop_daemon(mhd);
}
void HTTPD::start(int port)
&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)
}
*con_cls = stream;
- // 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);
+ MHD_Response *response;
- // TODO: Content-type?
- if (framing == HTTPD::Stream::FRAMING_METACUBE) {
- MHD_add_response_header(response, "Content-encoding", "metacube");
+ if (strcmp(url, "/metrics") == 0) {
+ string contents = global_metrics.serialize();
+ response = MHD_create_response_from_buffer(
+ contents.size(), &contents[0], MHD_RESPMEM_MUST_COPY);
+ MHD_add_response_header(response, "Content-type", "text/plain");
+ } else {
+ // Does not strictly have to be equal to MUX_BUFFER_SIZE.
+ 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); // Only decreases the refcount; actual free is after the request is done.
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();
}