2 * Copyright 2001-2003 Ximian, Inc
3 * Copyright 2003-2010 Novell, Inc.
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10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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26 #include "sgen-protocol.h"
28 #ifdef SGEN_BINARY_PROTOCOL
30 /* If not null, dump binary protocol to this file */
31 static FILE *binary_protocol_file = NULL;
33 static int binary_protocol_use_count = 0;
35 #define BINARY_PROTOCOL_BUFFER_SIZE (65536 - 2 * 8)
37 typedef struct _BinaryProtocolBuffer BinaryProtocolBuffer;
38 struct _BinaryProtocolBuffer {
39 BinaryProtocolBuffer *next;
41 unsigned char buffer [BINARY_PROTOCOL_BUFFER_SIZE];
44 static BinaryProtocolBuffer *binary_protocol_buffers = NULL;
45 LOCK_DECLARE (binary_protocol_mutex);
48 binary_protocol_init (const char *filename)
50 binary_protocol_file = fopen (filename, "w");
54 binary_protocol_is_enabled (void)
56 return binary_protocol_file != NULL;
60 binary_protocol_flush_buffers_rec (BinaryProtocolBuffer *buffer)
65 binary_protocol_flush_buffers_rec (buffer->next);
67 g_assert (buffer->index > 0);
68 fwrite (buffer->buffer, 1, buffer->index, binary_protocol_file);
70 mono_sgen_free_os_memory (buffer, sizeof (BinaryProtocolBuffer));
74 binary_protocol_flush_buffers (gboolean force)
76 if (!binary_protocol_file)
79 if (!force && binary_protocol_use_count != 0)
82 binary_protocol_flush_buffers_rec (binary_protocol_buffers);
83 binary_protocol_buffers = NULL;
85 fflush (binary_protocol_file);
88 static BinaryProtocolBuffer*
89 binary_protocol_get_buffer (int length)
91 BinaryProtocolBuffer *buffer, *new_buffer;
94 buffer = binary_protocol_buffers;
95 if (buffer && buffer->index + length <= BINARY_PROTOCOL_BUFFER_SIZE)
98 new_buffer = mono_sgen_alloc_os_memory (sizeof (BinaryProtocolBuffer), TRUE);
99 new_buffer->next = buffer;
100 new_buffer->index = 0;
102 if (InterlockedCompareExchangePointer ((void**)&binary_protocol_buffers, new_buffer, buffer) != buffer) {
103 mono_sgen_free_os_memory (new_buffer, sizeof (BinaryProtocolBuffer));
112 protocol_entry (unsigned char type, gpointer data, int size)
115 BinaryProtocolBuffer *buffer;
118 if (!binary_protocol_file)
122 old_count = binary_protocol_use_count;
123 g_assert (old_count >= 0);
124 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count + 1, old_count) != old_count);
127 buffer = binary_protocol_get_buffer (size + 1);
129 index = buffer->index;
130 if (index + 1 + size > BINARY_PROTOCOL_BUFFER_SIZE)
133 if (InterlockedCompareExchange (&buffer->index, index + 1 + size, index) != index)
134 goto retry_same_buffer;
136 /* FIXME: if we're interrupted at this point, we have a buffer
137 entry that contains random data. */
139 buffer->buffer [index++] = type;
140 memcpy (buffer->buffer + index, data, size);
143 g_assert (index <= BINARY_PROTOCOL_BUFFER_SIZE);
146 old_count = binary_protocol_use_count;
147 g_assert (old_count > 0);
148 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count - 1, old_count) != old_count);
152 binary_protocol_collection (int generation)
154 SGenProtocolCollection entry = { generation };
155 binary_protocol_flush_buffers (FALSE);
156 protocol_entry (SGEN_PROTOCOL_COLLECTION, &entry, sizeof (SGenProtocolCollection));
160 binary_protocol_alloc (gpointer obj, gpointer vtable, int size)
162 SGenProtocolAlloc entry = { obj, vtable, size };
163 protocol_entry (SGEN_PROTOCOL_ALLOC, &entry, sizeof (SGenProtocolAlloc));
167 binary_protocol_alloc_pinned (gpointer obj, gpointer vtable, int size)
169 SGenProtocolAlloc entry = { obj, vtable, size };
170 protocol_entry (SGEN_PROTOCOL_ALLOC_PINNED, &entry, sizeof (SGenProtocolAlloc));
174 binary_protocol_alloc_degraded (gpointer obj, gpointer vtable, int size)
176 SGenProtocolAlloc entry = { obj, vtable, size };
177 protocol_entry (SGEN_PROTOCOL_ALLOC_DEGRADED, &entry, sizeof (SGenProtocolAlloc));
181 binary_protocol_copy (gpointer from, gpointer to, gpointer vtable, int size)
183 SGenProtocolCopy entry = { from, to, vtable, size };
184 protocol_entry (SGEN_PROTOCOL_COPY, &entry, sizeof (SGenProtocolCopy));
188 binary_protocol_pin (gpointer obj, gpointer vtable, int size)
190 SGenProtocolPin entry = { obj, vtable, size };
191 protocol_entry (SGEN_PROTOCOL_PIN, &entry, sizeof (SGenProtocolPin));
195 binary_protocol_mark (gpointer obj, gpointer vtable, int size)
197 SGenProtocolMark entry = { obj, vtable, size };
198 protocol_entry (SGEN_PROTOCOL_MARK, &entry, sizeof (SGenProtocolMark));
202 binary_protocol_wbarrier (gpointer ptr, gpointer value, gpointer value_vtable)
204 SGenProtocolWBarrier entry = { ptr, value, value_vtable };
205 protocol_entry (SGEN_PROTOCOL_WBARRIER, &entry, sizeof (SGenProtocolWBarrier));
209 binary_protocol_global_remset (gpointer ptr, gpointer value, gpointer value_vtable)
211 SGenProtocolGlobalRemset entry = { ptr, value, value_vtable };
212 protocol_entry (SGEN_PROTOCOL_GLOBAL_REMSET, &entry, sizeof (SGenProtocolGlobalRemset));
216 binary_protocol_ptr_update (gpointer ptr, gpointer old_value, gpointer new_value, gpointer vtable, int size)
218 SGenProtocolPtrUpdate entry = { ptr, old_value, new_value, vtable, size };
219 protocol_entry (SGEN_PROTOCOL_PTR_UPDATE, &entry, sizeof (SGenProtocolPtrUpdate));
223 binary_protocol_cleanup (gpointer ptr, gpointer vtable, int size)
225 SGenProtocolCleanup entry = { ptr, vtable, size };
226 protocol_entry (SGEN_PROTOCOL_CLEANUP, &entry, sizeof (SGenProtocolCleanup));
230 binary_protocol_empty (gpointer start, int size)
232 SGenProtocolEmpty entry = { start, size };
233 protocol_entry (SGEN_PROTOCOL_EMPTY, &entry, sizeof (SGenProtocolEmpty));
237 binary_protocol_thread_restart (gpointer thread)
239 SGenProtocolThreadRestart entry = { thread };
240 protocol_entry (SGEN_PROTOCOL_THREAD_RESTART, &entry, sizeof (SGenProtocolThreadRestart));
245 binary_protocol_thread_register (gpointer thread)
247 SGenProtocolThreadRegister entry = { thread };
248 protocol_entry (SGEN_PROTOCOL_THREAD_REGISTER, &entry, sizeof (SGenProtocolThreadRegister));
253 binary_protocol_thread_unregister (gpointer thread)
255 SGenProtocolThreadUnregister entry = { thread };
256 protocol_entry (SGEN_PROTOCOL_THREAD_UNREGISTER, &entry, sizeof (SGenProtocolThreadUnregister));
261 binary_protocol_missing_remset (gpointer obj, gpointer obj_vtable, int offset, gpointer value, gpointer value_vtable, int value_pinned)
263 SGenProtocolMissingRemset entry = { obj, obj_vtable, offset, value, value_vtable, value_pinned };
264 protocol_entry (SGEN_PROTOCOL_MISSING_REMSET, &entry, sizeof (SGenProtocolMissingRemset));