WebSVN – HelenOS – Diff – /branches/tracing/uspace/srv/fs/tmpfs/tmpfs_dump.c



    do {
        char *fname;
        tmpfs_dentry_t *node;
        uint32_t size;
       
        if (block_read(dev, bufpos, buflen, pos, &entry, sizeof(entry),
            TMPFS_BLOCK_SIZE) != EOK)
            return false;
       
        entry.len = uint32_t_le2host(entry.len);
       
        switch (entry.type) {

        case TMPFS_FILE:
            fname = malloc(entry.len + 1);
            if (fname == NULL)
                return false;
           
            node = (tmpfs_dentry_t *) ops->create(dev, L_FILE);
            if (node == NULL) {
                free(fname);
                return false;
            }
           
            if (block_read(dev, bufpos, buflen, pos, fname,
                entry.len, TMPFS_BLOCK_SIZE) != EOK) {
                ops->destroy((void *) node);
                free(fname);
                return false;
            }
            fname[entry.len] = 0;

                free(fname);
                return false;
            }
            free(fname);
           
            if (block_read(dev, bufpos, buflen, pos, &size,
                sizeof(size), TMPFS_BLOCK_SIZE) != EOK)
                return false;
           
            size = uint32_t_le2host(size);
           
            node->data = malloc(size);
            if (node->data == NULL)
                return false;
           
            node->size = size;
            if (block_read(dev, bufpos, buflen, pos, node->data,
                size, TMPFS_BLOCK_SIZE) != EOK)
                return false;
           
            break;
        case TMPFS_DIRECTORY:
            fname = malloc(entry.len + 1);
            if (fname == NULL)
                return false;
           
            node = (tmpfs_dentry_t *) ops->create(dev, L_DIRECTORY);
            if (node == NULL) {
                free(fname);
                return false;
            }
           
            if (block_read(dev, bufpos, buflen, pos, fname,
                entry.len, TMPFS_BLOCK_SIZE) != EOK) {
                ops->destroy((void *) node);
                free(fname);
                return false;
            }
            fname[entry.len] = 0;

bool tmpfs_restore(dev_handle_t dev)
{
    libfs_ops_t *ops = &tmpfs_libfs_ops;
    int rc;
 
    rc = block_init(dev, TMPFS_BLOCK_SIZE);
    if (rc != EOK)
        return false;
   
    off_t bufpos = 0;
    size_t buflen = 0;
    off_t pos = 0;
   
    char tag[6];
    if (block_read(dev, &bufpos, &buflen, &pos, tag, 5,
        TMPFS_BLOCK_SIZE) != EOK)
        goto error;
   
    tag[5] = 0;
    if (strcmp(tag, "TMPFS") != 0)
        goto error;

Rev 3536	Rev 3597
Line 63...	Line 63...
63	do {	63	do {
64	char *fname;	64	char *fname;
65	tmpfs_dentry_t *node;	65	tmpfs_dentry_t *node;
66	uint32_t size;	66	uint32_t size;
67		67
68	if (!block_read(dev, bufpos, buflen, pos, &entry, sizeof(entry),	68	if (block_read(dev, bufpos, buflen, pos, &entry, sizeof(entry),
69	TMPFS_BLOCK_SIZE))	69	TMPFS_BLOCK_SIZE) != EOK)
70	return false;	70	return false;
71		71
72	entry.len = uint32_t_le2host(entry.len);	72	entry.len = uint32_t_le2host(entry.len);
73		73
74	switch (entry.type) {	74	switch (entry.type) {
Line 77...	Line 77...
77	case TMPFS_FILE:	77	case TMPFS_FILE:
78	fname = malloc(entry.len + 1);	78	fname = malloc(entry.len + 1);
79	if (fname == NULL)	79	if (fname == NULL)
80	return false;	80	return false;
81		81
82	node = (tmpfs_dentry_t *) ops->create(L_FILE);	82	node = (tmpfs_dentry_t *) ops->create(dev, L_FILE);
83	if (node == NULL) {	83	if (node == NULL) {
84	free(fname);	84	free(fname);
85	return false;	85	return false;
86	}	86	}
87		87
88	if (!block_read(dev, bufpos, buflen, pos, fname,	88	if (block_read(dev, bufpos, buflen, pos, fname,
89	entry.len, TMPFS_BLOCK_SIZE)) {	89	entry.len, TMPFS_BLOCK_SIZE) != EOK) {
90	ops->destroy((void *) node);	90	ops->destroy((void *) node);
91	free(fname);	91	free(fname);
92	return false;	92	return false;
93	}	93	}
94	fname[entry.len] = 0;	94	fname[entry.len] = 0;
Line 98...	Line 98...
98	free(fname);	98	free(fname);
99	return false;	99	return false;
100	}	100	}
101	free(fname);	101	free(fname);
102		102
103	if (!block_read(dev, bufpos, buflen, pos, &size,	103	if (block_read(dev, bufpos, buflen, pos, &size,
104	sizeof(size), TMPFS_BLOCK_SIZE))	104	sizeof(size), TMPFS_BLOCK_SIZE) != EOK)
105	return false;	105	return false;
106		106
107	size = uint32_t_le2host(size);	107	size = uint32_t_le2host(size);
108		108
109	node->data = malloc(size);	109	node->data = malloc(size);
110	if (node->data == NULL)	110	if (node->data == NULL)
111	return false;	111	return false;
112		112
113	node->size = size;	113	node->size = size;
114	if (!block_read(dev, bufpos, buflen, pos, node->data,	114	if (block_read(dev, bufpos, buflen, pos, node->data,
115	size, TMPFS_BLOCK_SIZE))	115	size, TMPFS_BLOCK_SIZE) != EOK)
116	return false;	116	return false;
117		117
118	break;	118	break;
119	case TMPFS_DIRECTORY:	119	case TMPFS_DIRECTORY:
120	fname = malloc(entry.len + 1);	120	fname = malloc(entry.len + 1);
121	if (fname == NULL)	121	if (fname == NULL)
122	return false;	122	return false;
123		123
124	node = (tmpfs_dentry_t *) ops->create(L_DIRECTORY);	124	node = (tmpfs_dentry_t *) ops->create(dev, L_DIRECTORY);
125	if (node == NULL) {	125	if (node == NULL) {
126	free(fname);	126	free(fname);
127	return false;	127	return false;
128	}	128	}
129		129
130	if (!block_read(dev, bufpos, buflen, pos,	130	if (block_read(dev, bufpos, buflen, pos, fname,
131	fname, entry.len, TMPFS_BLOCK_SIZE)) {	131	entry.len, TMPFS_BLOCK_SIZE) != EOK) {
132	ops->destroy((void *) node);	132	ops->destroy((void *) node);
133	free(fname);	133	free(fname);
134	return false;	134	return false;
135	}	135	}
136	fname[entry.len] = 0;	136	fname[entry.len] = 0;
Line 158...	Line 158...
158	bool tmpfs_restore(dev_handle_t dev)	158	bool tmpfs_restore(dev_handle_t dev)
159	{	159	{
160	libfs_ops_t *ops = &tmpfs_libfs_ops;	160	libfs_ops_t *ops = &tmpfs_libfs_ops;
161	int rc;	161	int rc;
162		162
163	rc = block_init(dev, TMPFS_BLOCK_SIZE, 0, 0);	163	rc = block_init(dev, TMPFS_BLOCK_SIZE);
164	if (rc != EOK)	164	if (rc != EOK)
165	return false;	165	return false;
166		166
167	off_t bufpos = 0;	167	off_t bufpos = 0;
168	size_t buflen = 0;	168	size_t buflen = 0;
169	off_t pos = 0;	169	off_t pos = 0;
170		170
171	char tag[6];	171	char tag[6];
172	if (!block_read(dev, &bufpos, &buflen, &pos, tag, 5,	172	if (block_read(dev, &bufpos, &buflen, &pos, tag, 5,
173	TMPFS_BLOCK_SIZE))	173	TMPFS_BLOCK_SIZE) != EOK)
174	goto error;	174	goto error;
175		175
176	tag[5] = 0;	176	tag[5] = 0;
177	if (strcmp(tag, "TMPFS") != 0)	177	if (strcmp(tag, "TMPFS") != 0)
178	goto error;	178	goto error;

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(root)/branches/tracing/uspace/srv/fs/tmpfs/tmpfs_dump.c – Rev 3536 → 3597