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Viewing changes to plugin/pbms/src/cslib/CSGlobal.h

  • Committer: Brian Aker
  • Date: 2010-06-28 16:17:36 UTC
  • mfrom: (1637.4.1 drizzle)
  • Revision ID: brian@gaz-20100628161736-eormhb2mnd551i2h
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plugin/pbms/src/cslib/CSGlobal.h
1
 
/* Copyright (C) 2008 PrimeBase Technologies GmbH, Germany
2
 
 *
3
 
 * PrimeBase Media Stream for MySQL
4
 
 *
5
 
 * This program is free software; you can redistribute it and/or modify
6
 
 * it under the terms of the GNU General Public License as published by
7
 
 * the Free Software Foundation; either version 2 of the License, or
8
 
 * (at your option) any later version.
9
 
 *
10
 
 * This program is distributed in the hope that it will be useful,
11
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
 
 * GNU General Public License for more details.
14
 
 *
15
 
 * You should have received a copy of the GNU General Public License
16
 
 * along with this program; if not, write to the Free Software
17
 
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
 
 *
19
 
 * Original author: Paul McCullagh (H&G2JCtL)
20
 
 * Continued development: Barry Leslie
21
 
 *
22
 
 * 2007-05-20
23
 
 *
24
 
 * CORE SYSTEM:
25
 
 * The definitions are used by all code, and is NOT required
26
 
 * by any header file!
27
 
 *
28
 
 */
29
 
 
30
 
#ifndef __CSGLOBAL_H__
31
 
#define __CSGLOBAL_H__
32
 
 
33
 
#include "CSDefs.h"
34
 
#include "CSObject.h"
35
 
#include "CSThread.h"
36
 
 
37
 
 
38
 
/* This is the call context: */
39
 
#define CS_CONTEXT                      __FUNC__, __FILE__, __LINE__
40
 
 
41
 
#ifdef DEBUG
42
 
int cs_assert(const char *func, const char *file, int line, const char *message);
43
 
int cs_hope(const char *func, const char *file, int line, const char *message);
44
 
 
45
 
#define ASSERT(x)                       ((x) ? 1 : cs_assert(CS_CONTEXT, #x))
46
 
#define HOPE(x)                         ((x) ? 1 : cs_hope(CS_CONTEXT, #x))
47
 
#else
48
 
#define ASSERT(x)
49
 
#define ASSERT(x)
50
 
#endif
51
 
 
52
 
#ifdef DEBUG
53
 
#define retain()                        retain(__FUNC__, __FILE__, __LINE__)
54
 
#define release()                       release(__FUNC__, __FILE__, __LINE__)
55
 
#endif
56
 
 
57
 
#define new_(v, t)                      do { v = new t; if (!v) CSException::throwOSError(CS_CONTEXT, ENOMEM); } while (0)
58
 
 
59
 
/*
60
 
 * -----------------------------------------------------------------------
61
 
 * Call stack
62
 
 */
63
 
 
64
 
/*
65
 
 * This macro must be placed at the start of every function.
66
 
 * It records the current context so that we can
67
 
 * dump a type of stack trace later if necessary.
68
 
 *
69
 
 * It also sets up the current thread pointer 'self'.
70
 
 */
71
 
#ifdef DEBUG
72
 
#define STACK_CHECK    CSReleasePtr self_reltop = self->relTop
73
 
#else
74
 
#define STACK_CHECK   
75
 
#endif
76
 
 
77
 
#define inner_()                        int                     cs_frame = self->callTop++; \
78
 
                                                        STACK_CHECK ; \
79
 
                                                        do { \
80
 
                                                                if (cs_frame< CS_CALL_STACK_SIZE) { \
81
 
                                                                        self->callStack[cs_frame].cs_func = __FUNC__; \
82
 
                                                                        self->callStack[cs_frame].cs_file = __FILE__; \
83
 
                                                                        self->callStack[cs_frame].cs_line = __LINE__; \
84
 
                                                                } \
85
 
                                                        } while (0)
86
 
 
87
 
#define outer_()                        self->callTop = cs_frame; \
88
 
                                                        ASSERT(self->relTop == self_reltop); 
89
 
 
90
 
#define enter_()                        CSThread        *self = CSThread::getSelf(); \
91
 
                                                        inner_()
92
 
 
93
 
/*
94
 
 * On exit to a function, either exit_() or
95
 
 * return_() must be called.
96
 
 */
97
 
#define exit_()                         do { \
98
 
                                                                outer_(); \
99
 
                                                                return; \
100
 
                                                        } while (0)
101
 
                                        
102
 
 
103
 
#define return_(x)                      do { \
104
 
                                                                outer_(); \
105
 
                                                                return(x); \
106
 
                                                        } while (0)
107
 
 
108
 
 
109
 
/*
110
 
 * -----------------------------------------------------------------------
111
 
 * Throwing and catching (the jump stack)
112
 
 */
113
 
 
114
 
int prof_setjmp(void);
115
 
 
116
 
#define TX_CHK_JMP()            if ((self)->jumpDepth < 0 || (self)->jumpDepth >= CS_JUMP_STACK_SIZE) CSException::throwCoreError(__FUNC__, __FILE__, __LINE__, CS_ERR_JUMP_OVERFLOW)
117
 
#ifdef PROFILE
118
 
#define profile_setjmp          prof_setjmp()
119
 
#else
120
 
#define profile_setjmp                  
121
 
#endif
122
 
 
123
 
#define throw_()                        (self)->throwException()
124
 
#define try_(n)                         int throw_##n; throw_##n = 0; TX_CHK_JMP(); \
125
 
                                                        (self)->jumpEnv[(self)->jumpDepth].jb_res_top = (self)->relTop; \
126
 
                                                        (self)->jumpEnv[(self)->jumpDepth].jb_call_top = (self)->callTop; \
127
 
                                                        (self)->jumpDepth++; profile_setjmp; \
128
 
                                                        if (setjmp((self)->jumpEnv[(self)->jumpDepth-1].jb_buffer)) goto catch_##n;
129
 
#define catch_(n)                       (self)->jumpDepth--; goto cont_##n; catch_##n: (self)->jumpDepth--; self->caught();
130
 
#define cont_(n)                        if (throw_##n) throw_(); cont_##n:
131
 
#define finally_(n)                     (self)->jumpDepth--; goto final_##n; catch_##n: throw_##n = 1; (self)->jumpDepth--; self->caught(); final_##n: {
132
 
#define finally_end_block(n) } if (throw_##n) throw_();
133
 
#define finally_end_block_no_throw(n) }
134
 
 
135
 
/*
136
 
 * -----------------------------------------------------------------------
137
 
 * The release stack
138
 
 */
139
 
 
140
 
#define push_(r)                        do { \
141
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) {\
142
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
143
 
                                                                } \
144
 
                                                                (self)->relTop->r_type = CS_RELEASE_OBJECT; \
145
 
                                                                (self)->relTop->x.r_object = (r); \
146
 
                                                                (self)->relTop++; \
147
 
                                                        } while (0)
148
 
 
149
 
#define push_ptr_(r)                    do { \
150
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) {\
151
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
152
 
                                                                } \
153
 
                                                                (self)->relTop->r_type = CS_RELEASE_MEM; \
154
 
                                                                (self)->relTop->x.r_mem = (r); \
155
 
                                                                (self)->relTop++; \
156
 
                                                        } while (0)
157
 
 
158
 
#define push_ref_(r)                    do { \
159
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) {\
160
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
161
 
                                                                } \
162
 
                                                                (self)->relTop->r_type = CS_RELEASE_OBJECT_PTR; \
163
 
                                                                (self)->relTop->x.r_objectPtr = (CSObject **)&(r); \
164
 
                                                                (self)->relTop++; \
165
 
                                                        } while (0)
166
 
 
167
 
#define pop_(r)                         do { \
168
 
                                                                ASSERT((self)->relTop > (self)->relStack); \
169
 
                                                                if (((self)->relTop - 1)->r_type == CS_RELEASE_OBJECT) {\
170
 
                                                                        ASSERT(((self)->relTop - 1)->x.r_object == ((CSObject *) r)); \
171
 
                                                                } else if (((self)->relTop - 1)->r_type == CS_RELEASE_MUTEX) {\
172
 
                                                                        ASSERT(((self)->relTop - 1)->x.r_mutex == ((CSMutex *) r)); \
173
 
                                                                } else if (((self)->relTop - 1)->r_type == CS_RELEASE_POOLED) {\
174
 
                                                                        ASSERT(((self)->relTop - 1)->x.r_pooled == ((CSPooled *) r)); \
175
 
                                                                } else if (((self)->relTop - 1)->r_type == CS_RELEASE_MEM) {\
176
 
                                                                        ASSERT(((self)->relTop - 1)->x.r_mem == ((void *) r)); \
177
 
                                                                }  else if (((self)->relTop - 1)->r_type == CS_RELEASE_OBJECT_PTR) {\
178
 
                                                                        ASSERT(((self)->relTop - 1)->x.r_objectPtr == ((CSObject **) &(r))); \
179
 
                                                                }  else {\
180
 
                                                                        ASSERT(false); \
181
 
                                                                } \
182
 
                                                                (self)->relTop--; \
183
 
                                                        } while (0)
184
 
 
185
 
#define retain_(r)                      do { \
186
 
                                                                (r)->retain(); \
187
 
                                                                push_(r); \
188
 
                                                        } while (0)
189
 
 
190
 
#define release_(r)                     do {  \
191
 
                                                                ASSERT((self)->relTop > (self)->relStack); \
192
 
                                                                if (((self)->relTop - 1)->r_type == CS_RELEASE_OBJECT) {\
193
 
                                                                        register CSObject *rp; \
194
 
                                                                        rp = ((self)->relTop - 1)->x.r_object; \
195
 
                                                                        ASSERT(rp == (CSObject *)(r)); \
196
 
                                                                        (self)->relTop--; \
197
 
                                                                        rp->release(); \
198
 
                                                                } else if (((self)->relTop - 1)->r_type == CS_RELEASE_MEM) {\
199
 
                                                                        register void *mem; \
200
 
                                                                        mem = ((self)->relTop - 1)->x.r_mem; \
201
 
                                                                        ASSERT(mem == (void *)(r)); \
202
 
                                                                        (self)->relTop--; \
203
 
                                                                        cs_free(mem); \
204
 
                                                                }  else if (((self)->relTop - 1)->r_type == CS_RELEASE_OBJECT_PTR) {\
205
 
                                                                        register CSObject **rp; \
206
 
                                                                        rp = ((self)->relTop - 1)->x.r_objectPtr; \
207
 
                                                                        ASSERT(rp == (CSObject **)&(r)); \
208
 
                                                                        (self)->relTop--; \
209
 
                                                                        if(*rp) (*rp)->release(); \
210
 
                                                                } else {\
211
 
                                                                        ASSERT(false); \
212
 
                                                                } \
213
 
                                                        } while (0)
214
 
 
215
 
#define lock_(r)                        do { \
216
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) {\
217
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
218
 
                                                                } \
219
 
                                                                (r)->lock(); \
220
 
                                                                (self)->relTop->r_type = CS_RELEASE_MUTEX; \
221
 
                                                                (self)->relTop->x.r_mutex = (r); \
222
 
                                                                (self)->relTop++; \
223
 
                                                        } while (0)
224
 
 
225
 
#define locked_(r)                      do { \
226
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) \
227
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
228
 
                                                                (self)->relTop->r_type = CS_RELEASE_MUTEX; \
229
 
                                                                (self)->relTop->x.r_mutex = (r); \
230
 
                                                                (self)->relTop++; \
231
 
                                                        } while (0)
232
 
 
233
 
#define unlock_(r)                      do {  \
234
 
                                                                register CSMutex *rp; \
235
 
                                                                ASSERT((self)->relTop > (self)->relStack); \
236
 
                                                                ASSERT(((self)->relTop - 1)->r_type == CS_RELEASE_MUTEX); \
237
 
                                                                rp = ((self)->relTop - 1)->x.r_mutex; \
238
 
                                                                ASSERT(rp == (r)); \
239
 
                                                                (self)->relTop--; \
240
 
                                                                rp->unlock(); \
241
 
                                                        } while (0)
242
 
 
243
 
#define frompool_(r)            do { \
244
 
                                                                if ((self)->relTop >= (self)->relStack + CS_RELEASE_STACK_SIZE) {\
245
 
                                                                        CSException::throwCoreError(CS_CONTEXT, CS_ERR_RELEASE_OVERFLOW); \
246
 
                                                                } \
247
 
                                                                (self)->relTop->r_type = CS_RELEASE_POOLED; \
248
 
                                                                (self)->relTop->x.r_pooled = (r); \
249
 
                                                                (self)->relTop++; \
250
 
                                                        } while (0)
251
 
 
252
 
#define backtopool_(r)          do {  \
253
 
                                                                register CSPooled *rp; \
254
 
                                                                ASSERT((self)->relTop > (self)->relStack); \
255
 
                                                                ASSERT(((self)->relTop - 1)->r_type == CS_RELEASE_POOLED); \
256
 
                                                                rp = ((self)->relTop - 1)->x.r_pooled; \
257
 
                                                                ASSERT(rp == (r)); \
258
 
                                                                (self)->relTop--; \
259
 
                                                                rp->returnToPool(); \
260
 
                                                        } while (0)
261
 
 
262
 
#endif