33 	circbuffer *cbuf = NULL;  in cbuf_new()  local
39 	cbuf = (circbuffer*)m_malloc(sizeof(circbuffer));  in cbuf_new()
40 	cbuf->data = (unsigned char*)m_malloc(size);  in cbuf_new()
41 	cbuf->used = 0;  in cbuf_new()
42 	cbuf->readpos = 0;  in cbuf_new()
43 	cbuf->writepos = 0;  in cbuf_new()
44 	cbuf->size = size;  in cbuf_new()
46 	return cbuf;  in cbuf_new()
49 void cbuf_free(circbuffer * cbuf) {  in cbuf_free()  argument
51 	m_free(cbuf->data);  in cbuf_free()
52 	m_free(cbuf);  in cbuf_free()
55 unsigned int cbuf_getused(circbuffer * cbuf) {  in cbuf_getused()  argument
57 	return cbuf->used;  in cbuf_getused()
61 unsigned int cbuf_getavail(circbuffer * cbuf) {  in cbuf_getavail()  argument
63 	return cbuf->size - cbuf->used;  in cbuf_getavail()
67 unsigned int cbuf_readlen(circbuffer *cbuf) {  in cbuf_readlen()  argument
69 	dropbear_assert(((2*cbuf->size)+cbuf->writepos-cbuf->readpos)%cbuf->size == cbuf->used%cbuf->size);  in cbuf_readlen()
70 …dropbear_assert(((2*cbuf->size)+cbuf->readpos-cbuf->writepos)%cbuf->size == (cbuf->size-cbuf->used…  in cbuf_readlen()
72 	if (cbuf->used == 0) {  in cbuf_readlen()
77 	if (cbuf->readpos < cbuf->writepos) {  in cbuf_readlen()
78 		return cbuf->writepos - cbuf->readpos;  in cbuf_readlen()
81 	return cbuf->size - cbuf->readpos;  in cbuf_readlen()
84 unsigned int cbuf_writelen(circbuffer *cbuf) {  in cbuf_writelen()  argument
86 	dropbear_assert(cbuf->used <= cbuf->size);  in cbuf_writelen()
87 	dropbear_assert(((2*cbuf->size)+cbuf->writepos-cbuf->readpos)%cbuf->size == cbuf->used%cbuf->size);  in cbuf_writelen()
88 …dropbear_assert(((2*cbuf->size)+cbuf->readpos-cbuf->writepos)%cbuf->size == (cbuf->size-cbuf->used…  in cbuf_writelen()
90 	if (cbuf->used == cbuf->size) {  in cbuf_writelen()
95 	if (cbuf->writepos < cbuf->readpos) {  in cbuf_writelen()
96 		return cbuf->readpos - cbuf->writepos;  in cbuf_writelen()
99 	return cbuf->size - cbuf->writepos;  in cbuf_writelen()
102 unsigned char* cbuf_readptr(circbuffer *cbuf, unsigned int len) {  in cbuf_readptr()  argument
103 	if (len > cbuf_readlen(cbuf)) {  in cbuf_readptr()
107 	return &cbuf->data[cbuf->readpos];  in cbuf_readptr()
110 unsigned char* cbuf_writeptr(circbuffer *cbuf, unsigned int len) {  in cbuf_writeptr()  argument
112 	if (len > cbuf_writelen(cbuf)) {  in cbuf_writeptr()
116 	return &cbuf->data[cbuf->writepos];  in cbuf_writeptr()
119 void cbuf_incrwrite(circbuffer *cbuf, unsigned int len) {  in cbuf_incrwrite()  argument
120 	if (len > cbuf_writelen(cbuf)) {  in cbuf_incrwrite()
124 	cbuf->used += len;  in cbuf_incrwrite()
125 	dropbear_assert(cbuf->used <= cbuf->size);  in cbuf_incrwrite()
126 	cbuf->writepos = (cbuf->writepos + len) % cbuf->size;  in cbuf_incrwrite()
130 void cbuf_incrread(circbuffer *cbuf, unsigned int len) {  in cbuf_incrread()  argument
131 	if (len > cbuf_readlen(cbuf)) {  in cbuf_incrread()
135 	dropbear_assert(cbuf->used >= len);  in cbuf_incrread()
136 	cbuf->used -= len;  in cbuf_incrread()
137 	cbuf->readpos = (cbuf->readpos + len) % cbuf->size;  in cbuf_incrread()