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1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #ifndef MIGRATION_QEMU_FILE_TYPES_H
26 #define MIGRATION_QEMU_FILE_TYPES_H
27
28 int qemu_file_get_error(QEMUFile *f);
29
30 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, size_t size);
31 void qemu_put_byte(QEMUFile *f, int v);
32
33 #define qemu_put_sbyte qemu_put_byte
34
35 void qemu_put_be16(QEMUFile *f, unsigned int v);
36 void qemu_put_be32(QEMUFile *f, unsigned int v);
37 void qemu_put_be64(QEMUFile *f, uint64_t v);
38 size_t coroutine_mixed_fn qemu_get_buffer(QEMUFile *f, uint8_t *buf, size_t size);
39
40 int qemu_get_byte(QEMUFile *f);
41
42 static inline unsigned int qemu_get_ubyte(QEMUFile *f)
43 {
44 return (unsigned int)qemu_get_byte(f);
45 }
46
47 #define qemu_get_sbyte qemu_get_byte
48
49 unsigned int qemu_get_be16(QEMUFile *f);
50 unsigned int qemu_get_be32(QEMUFile *f);
51 uint64_t qemu_get_be64(QEMUFile *f);
52
53 bool qemu_file_is_seekable(QEMUFile *f);
54
55 static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
56 {
57 qemu_put_be64(f, *pv);
58 }
59
60 static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
61 {
62 qemu_put_be32(f, *pv);
63 }
64
65 static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
66 {
67 qemu_put_be16(f, *pv);
68 }
69
70 static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
71 {
72 qemu_put_byte(f, *pv);
73 }
74
75 static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
76 {
77 *pv = qemu_get_be64(f);
78 }
79
80 static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
81 {
82 *pv = qemu_get_be32(f);
83 }
84
85 static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
86 {
87 *pv = qemu_get_be16(f);
88 }
89
90 static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
91 {
92 *pv = qemu_get_byte(f);
93 }
94
95 /* Signed versions for type safety */
96 static inline void qemu_put_sbe16(QEMUFile *f, int v)
97 {
98 qemu_put_be16(f, (unsigned int)v);
99 }
100
101 static inline void qemu_put_sbe32(QEMUFile *f, int v)
102 {
103 qemu_put_be32(f, (unsigned int)v);
104 }
105
106 static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
107 {
108 qemu_put_be64(f, (uint64_t)v);
109 }
110
111 static inline int qemu_get_sbe16(QEMUFile *f)
112 {
113 return (int)qemu_get_be16(f);
114 }
115
116 static inline int qemu_get_sbe32(QEMUFile *f)
117 {
118 return (int)qemu_get_be32(f);
119 }
120
121 static inline int64_t qemu_get_sbe64(QEMUFile *f)
122 {
123 return (int64_t)qemu_get_be64(f);
124 }
125
126 static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
127 {
128 qemu_put_8s(f, (const uint8_t *)pv);
129 }
130
131 static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
132 {
133 qemu_put_be16s(f, (const uint16_t *)pv);
134 }
135
136 static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
137 {
138 qemu_put_be32s(f, (const uint32_t *)pv);
139 }
140
141 static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
142 {
143 qemu_put_be64s(f, (const uint64_t *)pv);
144 }
145
146 static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
147 {
148 qemu_get_8s(f, (uint8_t *)pv);
149 }
150
151 static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
152 {
153 qemu_get_be16s(f, (uint16_t *)pv);
154 }
155
156 static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
157 {
158 qemu_get_be32s(f, (uint32_t *)pv);
159 }
160
161 static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
162 {
163 qemu_get_be64s(f, (uint64_t *)pv);
164 }
165
166 size_t coroutine_mixed_fn qemu_get_counted_string(QEMUFile *f, char buf[256]);
167
168 void qemu_put_counted_string(QEMUFile *f, const char *name);
169
170 /**
171 * migration_rate_exceeded: Check if we have exceeded rate for this interval
172 *
173 * Checks if we have already transferred more data that we are allowed
174 * in the current interval.
175 *
176 * @f: QEMUFile used for main migration channel
177 *
178 * Returns if we should stop sending data for this interval.
179 */
180 bool migration_rate_exceeded(QEMUFile *f);
181
182 #endif