Asterisk - The Open Source Telephony Project GIT-master-f3e88d3
Functions
rec_close.c File Reference
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/mman.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include "../include/db.h"
#include "recno.h"
Include dependency graph for rec_close.c:

Go to the source code of this file.

Functions

int __rec_close (DB *dbp)
 
int __rec_sync (DB *dbp, u_int flags) const
 

Function Documentation

◆ __rec_close()

int __rec_close ( DB dbp)

Definition at line 60 of file rec_close.c.

62{
63 BTREE *t;
64 int status;
65
66 t = dbp->internal;
67
68 /* Toss any page pinned across calls. */
69 if (t->bt_pinned != NULL) {
70 mpool_put(t->bt_mp, t->bt_pinned, 0);
71 t->bt_pinned = NULL;
72 }
73
74 if (__rec_sync(dbp, 0) == RET_ERROR)
75 return (RET_ERROR);
76
77 /* Committed to closing. */
79 if (F_ISSET(t, R_MEMMAPPED) && munmap(t->bt_smap, t->bt_msize))
81
82 if (!F_ISSET(t, R_INMEM)) {
83 if (F_ISSET(t, R_CLOSEFP)) {
84 if (fclose(t->bt_rfp))
86 } else
87 if (close(t->bt_rfd))
89 }
90
91 if (__bt_close(dbp) == RET_ERROR)
93
94 return (status);
95}
jack_status_t status
Definition: app_jack.c:146
int __bt_close(DB *dbp)
Definition: bt_close.c:64
#define F_ISSET(p, f)
Definition: btree.h:42
#define R_CLOSEFP
Definition: btree.h:377
#define R_MEMMAPPED
Definition: btree.h:380
#define R_INMEM
Definition: btree.h:381
#define RET_SUCCESS
Definition: db.h:52
#define RET_ERROR
Definition: db.h:51
static DB * dbp
Definition: hsearch.c:49
int mpool_put(MPOOL *mp, void *page, u_int flags)
Definition: mpool.c:251
int __rec_sync(DB *dbp, u_int flags) const
Definition: rec_close.c:107
#define NULL
Definition: resample.c:96
void * internal
Definition: db.h:137
Definition: btree.h:312
MPOOL * bt_mp
Definition: btree.h:313
PAGE * bt_pinned
Definition: btree.h:318
size_t bt_msize
Definition: btree.h:358
FILE * bt_rfp
Definition: btree.h:352
caddr_t bt_smap
Definition: btree.h:356
int bt_rfd
Definition: btree.h:353

References __bt_close(), __rec_sync(), _btree::bt_mp, _btree::bt_msize, _btree::bt_pinned, _btree::bt_rfd, _btree::bt_rfp, _btree::bt_smap, dbp, F_ISSET, __db::internal, mpool_put(), NULL, R_CLOSEFP, R_INMEM, R_MEMMAPPED, RET_ERROR, RET_SUCCESS, and status.

Referenced by __rec_open().

◆ __rec_sync()

int __rec_sync ( DB dbp,
u_int  flags 
) const

Definition at line 107 of file rec_close.c.

110{
111 struct iovec iov[2];
112 BTREE *t;
113 DBT data, key;
114 off_t off;
115 recno_t scursor, trec;
116 int status;
117
118 t = dbp->internal;
119
120 /* Toss any page pinned across calls. */
121 if (t->bt_pinned != NULL) {
122 mpool_put(t->bt_mp, t->bt_pinned, 0);
123 t->bt_pinned = NULL;
124 }
125
126 if (flags == R_RECNOSYNC)
127 return (__bt_sync(dbp, 0));
128
129 if (F_ISSET(t, R_RDONLY | R_INMEM) || !F_ISSET(t, R_MODIFIED))
130 return (RET_SUCCESS);
131
132 /* Read any remaining records into the tree. */
133 if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
134 return (RET_ERROR);
135
136 /* Rewind the file descriptor. */
137 if (lseek(t->bt_rfd, (off_t)0, SEEK_SET) != 0)
138 return (RET_ERROR);
139
140 /* Save the cursor. */
141 scursor = t->bt_cursor.rcursor;
142
143 key.size = sizeof(recno_t);
144 key.data = &trec;
145
146 if (F_ISSET(t, R_FIXLEN)) {
147 /*
148 * We assume that fixed length records are all fixed length.
149 * Any that aren't are either EINVAL'd or corrected by the
150 * record put code.
151 */
152 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
153 while (status == RET_SUCCESS) {
154 if ((size_t) write(t->bt_rfd, data.data, data.size) != data.size)
155 return (RET_ERROR);
156 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
157 }
158 } else {
159 iov[1].iov_base = &t->bt_bval;
160 iov[1].iov_len = 1;
161
162 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
163 while (status == RET_SUCCESS) {
164 iov[0].iov_base = data.data;
165 iov[0].iov_len = data.size;
166 if ((size_t) writev(t->bt_rfd, iov, 2) != data.size + 1)
167 return (RET_ERROR);
168 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
169 }
170 }
171
172 /* Restore the cursor. */
173 t->bt_cursor.rcursor = scursor;
174
175 if (status == RET_ERROR)
176 return (RET_ERROR);
177 if ((off = lseek(t->bt_rfd, (off_t)0, SEEK_CUR)) == -1)
178 return (RET_ERROR);
179 if (ftruncate(t->bt_rfd, off))
180 return (RET_ERROR);
181 F_CLR(t, R_MODIFIED);
182 return (RET_SUCCESS);
183}
int __bt_sync(DB *dbp, u_int flags) const
Definition: bt_close.c:119
#define R_MODIFIED
Definition: btree.h:382
#define R_RDONLY
Definition: btree.h:383
#define F_CLR(p, f)
Definition: btree.h:41
#define R_EOF
Definition: btree.h:378
#define R_FIXLEN
Definition: btree.h:379
#define R_NEXT
Definition: db.h:97
#define R_FIRST
Definition: db.h:93
#define MAX_REC_NUMBER
Definition: db.h:81
u_int32_t recno_t
Definition: db.h:82
#define R_RECNOSYNC
Definition: db.h:101
Definition: db.h:85
void * data
Definition: db.h:86
size_t size
Definition: db.h:87

References __bt_sync(), DBT::data, dbp, F_CLR, F_ISSET, __db::internal, MAX_REC_NUMBER, mpool_put(), NULL, R_EOF, R_FIRST, R_FIXLEN, R_INMEM, R_MODIFIED, R_NEXT, R_RDONLY, R_RECNOSYNC, RET_ERROR, RET_SUCCESS, DBT::size, and status.

Referenced by __rec_close(), and __rec_open().