diff options
author | Karen Arutyunov <karen@codesynthesis.com> | 2020-03-18 22:17:49 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2020-03-27 17:28:44 +0300 |
commit | 35359f038f571dc46de3d14af72a2bc911fb0a24 (patch) | |
tree | de3e89d678e78b9efc4d395274fd7ccc68f4a213 /web/apache/stream.hxx | |
parent | 8ad672cc7211952716ffe1fbf76c179b4f1149e3 (diff) |
Implement brep-monitor
Diffstat (limited to 'web/apache/stream.hxx')
-rw-r--r-- | web/apache/stream.hxx | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/web/apache/stream.hxx b/web/apache/stream.hxx deleted file mode 100644 index ed0018e..0000000 --- a/web/apache/stream.hxx +++ /dev/null @@ -1,148 +0,0 @@ -// file : web/apache/stream.hxx -*- C++ -*- -// license : MIT; see accompanying LICENSE file - -#ifndef WEB_APACHE_STREAM_HXX -#define WEB_APACHE_STREAM_HXX - -#include <httpd.h> // request_rec, HTTP_* -#include <http_protocol.h> // ap_*() - -#include <ios> // streamsize -#include <vector> -#include <cstring> // memmove(), size_t -#include <streambuf> -#include <algorithm> // min(), max() - -#include <web/module.hxx> // invalid_request - -namespace web -{ - namespace apache - { - // Object of a class implementing this interface is intended for keeping - // the state of communication with the client. - // - struct stream_state - { - // Called by istreambuf functions when content is about to be read from - // the client. Can throw invalid_request or sequence_error. - // - virtual void - set_read_state () = 0; - - // Called by ostreambuf functions when some content is about to be - // written to the client. Can throw invalid_request or sequence_error. - // - virtual void - set_write_state () = 0; - }; - - // Base class for ostreambuf and istreambuf. References request and - // communication state structures. - // - class rbuf: public std::streambuf - { - protected: - rbuf (request_rec* r, stream_state& s): rec_ (r), state_ (s) {} - - protected: - request_rec* rec_; - stream_state& state_; - }; - - class ostreambuf: public rbuf - { - public: - ostreambuf (request_rec* r, stream_state& s): rbuf (r, s) {} - - private: - virtual int_type - overflow (int_type c) - { - if (c != traits_type::eof ()) - { - state_.set_write_state (); - - char chr (c); - - // Throwing allows to distinguish comm failure from other IO error - // conditions. - // - if (ap_rwrite (&chr, sizeof (chr), rec_) == -1) - throw invalid_request (HTTP_REQUEST_TIME_OUT); - } - - return c; - } - - virtual std::streamsize - xsputn (const char* s, std::streamsize num) - { - state_.set_write_state (); - - if (ap_rwrite (s, num, rec_) < 0) - throw invalid_request (HTTP_REQUEST_TIME_OUT); - - return num; - } - - virtual int - sync () - { - if (ap_rflush (rec_) < 0) - throw invalid_request (HTTP_REQUEST_TIME_OUT); - - return 0; - } - }; - - class istreambuf: public rbuf - { - public: - istreambuf (request_rec* r, - stream_state& s, - size_t bufsize = 1024, - size_t putback = 1) - : rbuf (r, s), - bufsize_ (std::max (bufsize, (size_t)1)), - putback_ (std::min (putback, bufsize_ - 1)), - buf_ (bufsize_) - { - char* p (buf_.data () + putback_); - setg (p, p, p); - } - - protected: - virtual int_type - underflow () - { - if (gptr () < egptr ()) - return traits_type::to_int_type (*gptr ()); - - state_.set_read_state (); - - size_t pb (std::min ((size_t)(gptr () - eback ()), putback_)); - std::memmove (buf_.data () + putback_ - pb, gptr () - pb, pb); - - char* p (buf_.data () + putback_); - int rb (ap_get_client_block (rec_, p, bufsize_ - putback_)); - - if (rb == 0) - return traits_type::eof (); - - if (rb < 0) - throw invalid_request (HTTP_REQUEST_TIME_OUT); - - setg (p - pb, p, p + rb); - return traits_type::to_int_type (*gptr ()); - } - - protected: - size_t bufsize_; - size_t putback_; - std::vector<char> buf_; - }; - } -} - -#endif // WEB_APACHE_STREAM_HXX |