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root/radiance/ray/src/common/rtprocess.h
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Comparing ray/src/common/rtprocess.h (file contents):
Revision 3.3 by schorsch, Mon Jul 14 20:02:29 2003 UTC vs.
Revision 3.17 by greg, Tue Mar 20 17:45:07 2018 UTC

# Line 7 | Line 7
7   */
8   #ifndef _RAD_PROCESS_H_
9   #define _RAD_PROCESS_H_
10 #ifdef __cplusplus
11 extern "C" {
12 #endif
10  
11   #include  <errno.h>
12 < #ifdef _WIN32
12 > #include <stdio.h>
13 > #if defined(_WIN32) || defined(_WIN64)
14    #include <windows.h> /* DWORD etc. */
15 <  typedef DWORD pid_t;
15 >  typedef DWORD RT_PID;
16    #include <process.h> /* getpid() and others */
17 +  #define getpid _getpid
18 +  #define execv _execv
19 +  #define execvp _execvp
20   #else
21    #include <sys/param.h>
22 +  #include <sys/types.h>
23 +  typedef pid_t RT_PID;
24   #endif
25  
26   #include "paths.h"
27  
28 + #ifdef __cplusplus
29 + extern "C" {
30 + #endif
31  
32   /* On Windows, a process ID is a DWORD. That might actually be the
33     same thing as an int, but it's better not to assume anything.
34  
35     This means that we shouldn't rely on PIDs and file descriptors
36     being the same type, so we have to describe processes with a struct,
37 <   instead of the original int[3]. To keep things simple, we typedef
38 <   the posix pid_t on those systems that don't have it already.
33 <
34 <   Some older Windows systems use negative PIDs. Open_process() and
35 <   close_process() will convert those to positive values during
36 <   runtime, so that client modules can still use -1 as invalid PID.
37 >   instead of the original int[3]. For that purpose, we typedef a
38 >   platform independent RT_PID.
39   */
40  
41  
# Line 53 | Line 55 | typedef struct {
55          int r; /* read handle */
56          int w; /* write handle */
57          int running; /* doing something */
58 <        pid_t pid; /* process ID */
58 >        RT_PID pid; /* process ID */
59   } SUBPROC;
60  
61   #define SP_INACTIVE {-1,-1,0,0} /* for static initializations */
62  
63 + #define close_process(pd)       close_processes(pd,1)
64 +
65   extern int open_process(SUBPROC *pd, char *av[]);
66 < extern int close_process(SUBPROC *pd);
66 > extern int close_processes(SUBPROC pd[], int nproc);
67   extern int process(SUBPROC *pd, char *recvbuf, char *sendbuf, int nbr, int nbs);
68   extern int readbuf(int fd, char *bpos, int siz);
69   extern int writebuf(int fd, char *bpos, int siz);
70 +
71 + #if defined(_WIN32) || defined(_WIN64)
72 + /* any non-negative increment will send the process to IDLE_PRIORITY_CLASS. */
73 + extern int win_kill(RT_PID pid, int sig /* ignored */);
74 + extern int win_nice(int inc);
75 + #endif
76  
77  
78   #ifdef __cplusplus

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