annotate mercurial/compat.h @ 36861:a88d68dc3ee8

hgweb: create dedicated type for WSGI responses

We have refactored the request side of WSGI processing into a dedicated
type. Now let's do the same thing for the response side.

We invent a ``wsgiresponse`` type. It takes an instance of a
request (for consulation) and the WSGI application's "start_response"
handler.

The type basically allows setting the HTTP status line, response
headers, and the response body.

The WSGI application calls sendresponse() to start sending output.
Output is emitted as a generator to be fed through the WSGI application.
According to PEP 3333, this is the preferred way for output to be
transmitted. (Our legacy ``wsgirequest`` exposed a write() to send
data. We do not wish to support this API because it isn't recommended
by PEP 3333.)

The wire protocol code has been ported to use the new API.

Differential Revision: https://phab.mercurial-scm.org/D2775

#ifndef _HG_COMPAT_H_
#define _HG_COMPAT_H_

#ifdef _WIN32
#ifdef _MSC_VER
/* msvc 6.0 has problems */
#define inline __inline
#if defined(_WIN64)
typedef __int64 ssize_t;
typedef unsigned __int64 uintptr_t;
#else
typedef int ssize_t;
typedef unsigned int uintptr_t;
#endif
typedef signed char int8_t;
typedef short int16_t;
typedef long int32_t;
typedef __int64 int64_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
#else
/* not windows */
#include <sys/types.h>
#if defined __BEOS__ && !defined __HAIKU__
#include <ByteOrder.h>
#else
#include <arpa/inet.h>
#endif
#include <inttypes.h>
#endif

#if defined __hpux || defined __SUNPRO_C || defined _AIX
#define inline
#endif

#ifdef __linux
#define inline __inline
#endif

#endif