2 * Copyright 2001-2003 Ximian, Inc
3 * Copyright 2003-2010 Novell, Inc.
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13 * The above copyright notice and this permission notice shall 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_flush_buffers_rec (BinaryProtocolBuffer *buffer)
52 binary_protocol_flush_buffers_rec (buffer->next);
54 g_assert (buffer->index > 0);
55 fwrite (buffer->buffer, 1, buffer->index, binary_protocol_file);
57 mono_sgen_free_os_memory (buffer, sizeof (BinaryProtocolBuffer));
61 binary_protocol_flush_buffers (gboolean force)
63 if (!binary_protocol_file)
66 if (!force && binary_protocol_use_count != 0)
69 binary_protocol_flush_buffers_rec (binary_protocol_buffers);
70 binary_protocol_buffers = NULL;
72 fflush (binary_protocol_file);
75 static BinaryProtocolBuffer*
76 binary_protocol_get_buffer (int length)
78 BinaryProtocolBuffer *buffer, *new_buffer;
81 buffer = binary_protocol_buffers;
82 if (buffer && buffer->index + length <= BINARY_PROTOCOL_BUFFER_SIZE)
85 new_buffer = mono_sgen_alloc_os_memory (sizeof (BinaryProtocolBuffer), TRUE);
86 new_buffer->next = buffer;
87 new_buffer->index = 0;
89 if (InterlockedCompareExchangePointer ((void**)&binary_protocol_buffers, new_buffer, buffer) != buffer) {
90 mono_sgen_free_os_memory (new_buffer, sizeof (BinaryProtocolBuffer));
99 protocol_entry (unsigned char type, gpointer data, int size)
102 BinaryProtocolBuffer *buffer;
105 if (!binary_protocol_file)
109 old_count = binary_protocol_use_count;
110 g_assert (old_count >= 0);
111 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count + 1, old_count) != old_count);
114 buffer = binary_protocol_get_buffer (size + 1);
116 index = buffer->index;
117 if (index + 1 + size > BINARY_PROTOCOL_BUFFER_SIZE)
120 if (InterlockedCompareExchange (&buffer->index, index + 1 + size, index) != index)
121 goto retry_same_buffer;
123 /* FIXME: if we're interrupted at this point, we have a buffer
124 entry that contains random data. */
126 buffer->buffer [index++] = type;
127 memcpy (buffer->buffer + index, data, size);
130 g_assert (index <= BINARY_PROTOCOL_BUFFER_SIZE);
133 old_count = binary_protocol_use_count;
134 g_assert (old_count > 0);
135 } while (InterlockedCompareExchange (&binary_protocol_use_count, old_count - 1, old_count) != old_count);
139 binary_protocol_collection (int generation)
141 SGenProtocolCollection entry = { generation };
142 binary_protocol_flush_buffers (FALSE);
143 protocol_entry (SGEN_PROTOCOL_COLLECTION, &entry, sizeof (SGenProtocolCollection));
147 binary_protocol_alloc (gpointer obj, gpointer vtable, int size)
149 SGenProtocolAlloc entry = { obj, vtable, size };
150 protocol_entry (SGEN_PROTOCOL_ALLOC, &entry, sizeof (SGenProtocolAlloc));
154 binary_protocol_alloc_pinned (gpointer obj, gpointer vtable, int size)
156 SGenProtocolAlloc entry = { obj, vtable, size };
157 protocol_entry (SGEN_PROTOCOL_ALLOC_PINNED, &entry, sizeof (SGenProtocolAlloc));
161 binary_protocol_alloc_degraded (gpointer obj, gpointer vtable, int size)
163 SGenProtocolAlloc entry = { obj, vtable, size };
164 protocol_entry (SGEN_PROTOCOL_ALLOC_DEGRADED, &entry, sizeof (SGenProtocolAlloc));
168 binary_protocol_copy (gpointer from, gpointer to, gpointer vtable, int size)
170 SGenProtocolCopy entry = { from, to, vtable, size };
171 protocol_entry (SGEN_PROTOCOL_COPY, &entry, sizeof (SGenProtocolCopy));
175 binary_protocol_pin (gpointer obj, gpointer vtable, int size)
177 SGenProtocolPin entry = { obj, vtable, size };
178 protocol_entry (SGEN_PROTOCOL_PIN, &entry, sizeof (SGenProtocolPin));
182 binary_protocol_mark (gpointer obj, gpointer vtable, int size)
184 SGenProtocolMark entry = { obj, vtable, size };
185 protocol_entry (SGEN_PROTOCOL_MARK, &entry, sizeof (SGenProtocolMark));
189 binary_protocol_wbarrier (gpointer ptr, gpointer value, gpointer value_vtable)
191 SGenProtocolWBarrier entry = { ptr, value, value_vtable };
192 protocol_entry (SGEN_PROTOCOL_WBARRIER, &entry, sizeof (SGenProtocolWBarrier));
196 binary_protocol_global_remset (gpointer ptr, gpointer value, gpointer value_vtable)
198 SGenProtocolGlobalRemset entry = { ptr, value, value_vtable };
199 protocol_entry (SGEN_PROTOCOL_GLOBAL_REMSET, &entry, sizeof (SGenProtocolGlobalRemset));
203 binary_protocol_ptr_update (gpointer ptr, gpointer old_value, gpointer new_value, gpointer vtable, int size)
205 SGenProtocolPtrUpdate entry = { ptr, old_value, new_value, vtable, size };
206 protocol_entry (SGEN_PROTOCOL_PTR_UPDATE, &entry, sizeof (SGenProtocolPtrUpdate));
210 binary_protocol_cleanup (gpointer ptr, gpointer vtable, int size)
212 SGenProtocolCleanup entry = { ptr, vtable, size };
213 protocol_entry (SGEN_PROTOCOL_CLEANUP, &entry, sizeof (SGenProtocolCleanup));
217 binary_protocol_empty (gpointer start, int size)
219 SGenProtocolEmpty entry = { start, size };
220 protocol_entry (SGEN_PROTOCOL_EMPTY, &entry, sizeof (SGenProtocolEmpty));
224 binary_protocol_thread_restart (gpointer thread)
226 SGenProtocolThreadRestart entry = { thread };
227 protocol_entry (SGEN_PROTOCOL_THREAD_RESTART, &entry, sizeof (SGenProtocolThreadRestart));
232 binary_protocol_thread_register (gpointer thread)
234 SGenProtocolThreadRegister entry = { thread };
235 protocol_entry (SGEN_PROTOCOL_THREAD_REGISTER, &entry, sizeof (SGenProtocolThreadRegister));
240 binary_protocol_thread_unregister (gpointer thread)
242 SGenProtocolThreadUnregister entry = { thread };
243 protocol_entry (SGEN_PROTOCOL_THREAD_UNREGISTER, &entry, sizeof (SGenProtocolThreadUnregister));
248 binary_protocol_missing_remset (gpointer obj, gpointer obj_vtable, int offset, gpointer value, gpointer value_vtable, int value_pinned)
250 SGenProtocolMissingRemset entry = { obj, obj_vtable, offset, value, value_vtable, value_pinned };
251 protocol_entry (SGEN_PROTOCOL_MISSING_REMSET, &entry, sizeof (SGenProtocolMissingRemset));