1 /*
2 	sys.h
3 
4 	non-portable functions
5 
6 	Copyright (C) 1996-1997  Id Software, Inc.
7 
8 	This program is free software; you can redistribute it and/or
9 	modify it under the terms of the GNU General Public License
10 	as published by the Free Software Foundation; either version 2
11 	of the License, or (at your option) any later version.
12 
13 	This program is distributed in the hope that it will be useful,
14 	but WITHOUT ANY WARRANTY; without even the implied warranty of
15 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 
17 	See the GNU General Public License for more details.
18 
19 	You should have received a copy of the GNU General Public License
20 	along with this program; if not, write to:
21 
22 		Free Software Foundation, Inc.
23 		59 Temple Place - Suite 330
24 		Boston, MA  02111-1307, USA
25 
26 */
27 
28 #ifndef __sys_h
29 #define __sys_h
30 
31 /** \defgroup sys Portability
32 	\ingroup utils
33 	Non-portable functions
34 */
35 //@{
36 
37 #include <stdio.h>
38 #include <stdint.h>
39 #include <stdarg.h>
40 
41 extern	struct cvar_s	*sys_nostdout;
42 extern	struct cvar_s	*sys_extrasleep;
43 extern	struct cvar_s	*sys_dead_sleep;
44 extern	struct cvar_s	*sys_sleep;
45 
46 extern struct cvar_s *developer;
47 
48 
49 extern const char sys_char_map[256];
50 
51 typedef struct date_s {
52 	int         sec;
53 	int         min;
54 	int         hour;
55 	int         day;
56 	int         mon;
57 	int         year;
58 	char        str[128];
59 } date_t;
60 
61 int	Sys_FileTime (const char *path);
62 int Sys_mkdir (const char *path);
63 
64 typedef void (*sys_printf_t) (const char *fmt, va_list args);
65 
66 void Sys_SetStdPrintf (sys_printf_t func);
67 void Sys_SetErrPrintf (sys_printf_t func);
68 
69 void Sys_Print (FILE *stream, const char *fmt, va_list args);
70 void Sys_Printf (const char *fmt, ...) __attribute__((format(printf,1,2)));
71 void Sys_Error (const char *error, ...) __attribute__((format(printf,1,2), noreturn));
72 void Sys_Quit (void) __attribute__((noreturn));
73 void Sys_Shutdown (void);
74 void Sys_RegisterShutdown (void (*func) (void));
75 double Sys_DoubleTime (void);
76 void Sys_TimeOfDay(date_t *date);
77 
78 void Sys_MaskPrintf (int mask, const char *fmt, ...) __attribute__((format(printf,2,3)));
79 #define SYS_DEV     (1|0)
80 #define SYS_WARN    (1|2)	// bit 0 so developer 1 will pick it up
81 #define SYS_VID     (1|4)
82 #define SYS_FS_NF   (1|8)
83 #define SYS_FS_F    (1|16)
84 #define SYS_FS      (1|32)
85 #define SYS_NET     (1|64)
86 #define SYS_RUA_OBJ (1|128)
87 #define SYS_RUA_MSG (1|256)
88 #define SYS_SND     (1|512)
89 #define SYS_GLT     (1|1024)
90 #define SYS_GLSL    (1|2048)
91 #define SYS_SKIN    (1|4096)
92 #define SYS_MODEL   (1|8192)
93 
94 int Sys_CheckInput (int idle, int net_socket);
95 const char *Sys_ConsoleInput (void);
96 
97 void Sys_Sleep (void);
98 
99 int Sys_TimeID (void);
100 // called to yield for a little bit so as
101 // not to hog cpu when paused or debugging
102 
103 void Sys_MaskFPUExceptions (void);
104 void Sys_PushSignalHook (int (*hook)(int, void*), void *data);
105 void Sys_PopSignalHook (void);
106 
107 // send text to the console
108 
109 void Sys_Init (void);
110 void Sys_Init_Cvars (void);
111 
112 //
113 // memory protection
114 //
115 void Sys_MakeCodeWriteable (uintptr_t startaddr, size_t length);
116 void Sys_PageIn (void *ptr, int size);
117 
118 //
119 // system IO
120 //
121 void Sys_DebugLog(const char *file, const char *fmt, ...) __attribute__((format(printf,2,3)));
122 
123 #define SYS_CHECKMEM(x) 												\
124 	do {																\
125 		if (!(x))														\
126 			Sys_Error ("%s: Failed to allocate memory.", __FUNCTION__);	\
127 	} while (0)
128 
129 /**	Create all parent directories leading to the file specified by path.
130 
131 	\param path		The path to create.
132 	\return			0 on success, -1 on failure.
133 
134 	\note No directory will be created for the name after the final
135 	<code>/</code>. This is to allow the same path string to be used for
136 	both this function and Qopen.
137 */
138 int Sys_CreatePath (const char *path);
139 
140 /**	Expand leading "~/" in \a path to the user's home directory.
141 	On Linux-like systems, the user's home directory is obtained from the
142 	system, or failing that, the \c HOME environment variable.
143 
144 	On Windows systems, first the \c HOME environment variable is checked.
145 	If \c HOME is not set, \c WINDIR is used.
146 
147 	\param path		the path to check for "~/"
148 	\return			the expanded path
149 	\note It is the caller's responsibility to free the returned string.
150 */
151 char *Sys_ExpandSquiggle (const char *path);
152 
153 //@}
154 
155 #endif // __sys_h
156