Support input from pipes (subprocesses).

[cubemap] / httpinput.h

diff --git a/httpinput.h b/httpinput.h
index 31819f947ec54f4e225e95609e6fb86562867898..890cc9ef91256b92145e58dcc3425831fa0747fc 100644 (file)
--- a/httpinput.h
+++ b/httpinput.h
@@ -8,9 +8,12 @@
 
 #include "input.h"
 #include "metacube2.h"
+#include "stream.h"
 
 class InputProto;
 
+// Despite the name, covers input over both HTTP and pipes, both typically
+// wrapped in Metacube.
 class HTTPInput : public Input {
 public:
        HTTPInput(const std::string &url, Input::Encoding encoding);
@@ -34,6 +37,10 @@ private:
        // Open a socket that connects to the given host and port. Does DNS resolving.
        int lookup_and_connect(const std::string &host, const std::string &port);
 
+       // Open a child process with the given command line (given to /bin/sh).
+       // Returns a pipe to its standard output.
+       int open_child_process(const std::string &cmdline);
+
        // Parses a HTTP response. Returns false if it not a 200.
        bool parse_response(const std::string &response);
 
@@ -108,6 +115,12 @@ private:
        // Last time we made a connection with logging enabled.
        // (Initially at some point before the epoch.)
        timespec last_verbose_connection { -3600, 0 };
+
+       // If we've received a Metacube2 PTS metadata block, it belongs to the
+       // next regular block we receive, and is stored here in the meantime.
+       // If we haven't received one yet (or we've already received the
+       // corresponding data block), this is empty, ie., timebase_num == 0.
+       RationalPTS next_block_pts;
 };
 
 #endif  // !defined(_HTTPINPUT_H)