2 * Copyright 2001-2003 Ximian, Inc
3 * Copyright 2003-2010 Novell, Inc.
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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.
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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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25 #include "sgen-protocol.h"
27 #ifdef SGEN_BINARY_PROTOCOL
29 /* If not null, dump binary protocol to this file */
30 static FILE *binary_protocol_file = NULL;
32 static int binary_protocol_use_count = 0;
34 #define BINARY_PROTOCOL_BUFFER_SIZE (65536 - 2 * 8)
36 typedef struct _BinaryProtocolBuffer BinaryProtocolBuffer;
37 struct _BinaryProtocolBuffer {
38 BinaryProtocolBuffer *next;
40 unsigned char buffer [BINARY_PROTOCOL_BUFFER_SIZE];
43 static BinaryProtocolBuffer *binary_protocol_buffers = NULL;
44 LOCK_DECLARE (binary_protocol_mutex);
47 binary_protocol_init (const char *filename)
49 binary_protocol_file = fopen (filename, "w");
53 binary_protocol_is_enabled (void)
55 return binary_protocol_file != NULL;
59 binary_protocol_flush_buffers_rec (BinaryProtocolBuffer *buffer)
64 binary_protocol_flush_buffers_rec (buffer->next);
66 g_assert (buffer->index > 0);
67 fwrite (buffer->buffer, 1, buffer->index, binary_protocol_file);
69 mono_sgen_free_os_memory (buffer, sizeof (BinaryProtocolBuffer));
73 binary_protocol_flush_buffers (gboolean force)
75 if (!binary_protocol_file)
78 if (!force && binary_protocol_use_count != 0)
81 binary_protocol_flush_buffers_rec (binary_protocol_buffers);
82 binary_protocol_buffers = NULL;
84 fflush (binary_protocol_file);
87 static BinaryProtocolBuffer*
88 binary_protocol_get_buffer (int length)
90 BinaryProtocolBuffer *buffer, *new_buffer;
93 buffer = binary_protocol_buffers;
94 if (buffer && buffer->index + length <= BINARY_PROTOCOL_BUFFER_SIZE)
97 new_buffer = mono_sgen_alloc_os_memory (sizeof (BinaryProtocolBuffer), TRUE);
98 new_buffer->next = buffer;
99 new_buffer->index = 0;
101 if (InterlockedCompareExchangePointer ((void**)&binary_protocol_buffers, new_buffer, buffer) != buffer) {
102 mono_sgen_free_os_memory (new_buffer, sizeof (BinaryProtocolBuffer));
111 protocol_entry (unsigned char type, gpointer data, int size)
114 BinaryProtocolBuffer *buffer;
117 if (!binary_protocol_file)
121 old_count = binary_protocol_use_count;
122 g_assert (old_count >= 0);
123 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count + 1, old_count) != old_count);
126 buffer = binary_protocol_get_buffer (size + 1);
128 index = buffer->index;
129 if (index + 1 + size > BINARY_PROTOCOL_BUFFER_SIZE)
132 if (InterlockedCompareExchange (&buffer->index, index + 1 + size, index) != index)
133 goto retry_same_buffer;
135 /* FIXME: if we're interrupted at this point, we have a buffer
136 entry that contains random data. */
138 buffer->buffer [index++] = type;
139 memcpy (buffer->buffer + index, data, size);
142 g_assert (index <= BINARY_PROTOCOL_BUFFER_SIZE);
145 old_count = binary_protocol_use_count;
146 g_assert (old_count > 0);
147 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count - 1, old_count) != old_count);
151 binary_protocol_collection (int generation)
153 SGenProtocolCollection entry = { generation };
154 binary_protocol_flush_buffers (FALSE);
155 protocol_entry (SGEN_PROTOCOL_COLLECTION, &entry, sizeof (SGenProtocolCollection));
159 binary_protocol_alloc (gpointer obj, gpointer vtable, int size)
161 SGenProtocolAlloc entry = { obj, vtable, size };
162 protocol_entry (SGEN_PROTOCOL_ALLOC, &entry, sizeof (SGenProtocolAlloc));
166 binary_protocol_alloc_pinned (gpointer obj, gpointer vtable, int size)
168 SGenProtocolAlloc entry = { obj, vtable, size };
169 protocol_entry (SGEN_PROTOCOL_ALLOC_PINNED, &entry, sizeof (SGenProtocolAlloc));
173 binary_protocol_alloc_degraded (gpointer obj, gpointer vtable, int size)
175 SGenProtocolAlloc entry = { obj, vtable, size };
176 protocol_entry (SGEN_PROTOCOL_ALLOC_DEGRADED, &entry, sizeof (SGenProtocolAlloc));
180 binary_protocol_copy (gpointer from, gpointer to, gpointer vtable, int size)
182 SGenProtocolCopy entry = { from, to, vtable, size };
183 protocol_entry (SGEN_PROTOCOL_COPY, &entry, sizeof (SGenProtocolCopy));
187 binary_protocol_pin (gpointer obj, gpointer vtable, int size)
189 SGenProtocolPin entry = { obj, vtable, size };
190 protocol_entry (SGEN_PROTOCOL_PIN, &entry, sizeof (SGenProtocolPin));
194 binary_protocol_mark (gpointer obj, gpointer vtable, int size)
196 SGenProtocolMark entry = { obj, vtable, size };
197 protocol_entry (SGEN_PROTOCOL_MARK, &entry, sizeof (SGenProtocolMark));
201 binary_protocol_wbarrier (gpointer ptr, gpointer value, gpointer value_vtable)
203 SGenProtocolWBarrier entry = { ptr, value, value_vtable };
204 protocol_entry (SGEN_PROTOCOL_WBARRIER, &entry, sizeof (SGenProtocolWBarrier));
208 binary_protocol_global_remset (gpointer ptr, gpointer value, gpointer value_vtable)
210 SGenProtocolGlobalRemset entry = { ptr, value, value_vtable };
211 protocol_entry (SGEN_PROTOCOL_GLOBAL_REMSET, &entry, sizeof (SGenProtocolGlobalRemset));
215 binary_protocol_ptr_update (gpointer ptr, gpointer old_value, gpointer new_value, gpointer vtable, int size)
217 SGenProtocolPtrUpdate entry = { ptr, old_value, new_value, vtable, size };
218 protocol_entry (SGEN_PROTOCOL_PTR_UPDATE, &entry, sizeof (SGenProtocolPtrUpdate));
222 binary_protocol_cleanup (gpointer ptr, gpointer vtable, int size)
224 SGenProtocolCleanup entry = { ptr, vtable, size };
225 protocol_entry (SGEN_PROTOCOL_CLEANUP, &entry, sizeof (SGenProtocolCleanup));
229 binary_protocol_empty (gpointer start, int size)
231 SGenProtocolEmpty entry = { start, size };
232 protocol_entry (SGEN_PROTOCOL_EMPTY, &entry, sizeof (SGenProtocolEmpty));
236 binary_protocol_thread_restart (gpointer thread)
238 SGenProtocolThreadRestart entry = { thread };
239 protocol_entry (SGEN_PROTOCOL_THREAD_RESTART, &entry, sizeof (SGenProtocolThreadRestart));
244 binary_protocol_thread_register (gpointer thread)
246 SGenProtocolThreadRegister entry = { thread };
247 protocol_entry (SGEN_PROTOCOL_THREAD_REGISTER, &entry, sizeof (SGenProtocolThreadRegister));
252 binary_protocol_thread_unregister (gpointer thread)
254 SGenProtocolThreadUnregister entry = { thread };
255 protocol_entry (SGEN_PROTOCOL_THREAD_UNREGISTER, &entry, sizeof (SGenProtocolThreadUnregister));
260 binary_protocol_missing_remset (gpointer obj, gpointer obj_vtable, int offset, gpointer value, gpointer value_vtable, int value_pinned)
262 SGenProtocolMissingRemset entry = { obj, obj_vtable, offset, value, value_vtable, value_pinned };
263 protocol_entry (SGEN_PROTOCOL_MISSING_REMSET, &entry, sizeof (SGenProtocolMissingRemset));