2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (C) 2018 Universita` di Pisa
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/types.h>
34 #include <sys/ioctl.h>
43 #include <net/netmap_user.h>
44 #define LIBNETMAP_NOTHREADSAFE
45 #include "libnetmap.h"
48 nmctx_default_error(struct nmctx *ctx, const char *errmsg)
51 fprintf(stderr, "%s\n", errmsg);
55 nmctx_default_malloc(struct nmctx *ctx, size_t sz)
62 nmctx_default_free(struct nmctx *ctx, void *p)
68 static struct nmctx nmctx_global = {
70 .error = nmctx_default_error,
71 .malloc = nmctx_default_malloc,
72 .free = nmctx_default_free,
76 static struct nmctx *nmctx_default = &nmctx_global;
85 nmctx_set_default(struct nmctx *ctx)
87 struct nmctx *old = nmctx_default;
92 #define MAXERRMSG 1000
94 nmctx_ferror(struct nmctx *ctx, const char *fmt, ...)
96 char errmsg[MAXERRMSG];
104 rv = vsnprintf(errmsg, MAXERRMSG, fmt, ap);
108 if (rv < MAXERRMSG) {
109 ctx->error(ctx, errmsg);
111 ctx->error(ctx, "error message too long");
114 ctx->error(ctx, "internal error");
119 nmctx_malloc(struct nmctx *ctx, size_t sz)
121 return ctx->malloc(ctx, sz);
125 nmctx_free(struct nmctx *ctx, void *p)
131 nmctx_lock(struct nmctx *ctx)
133 if (ctx->lock != NULL)
138 nmctx_unlock(struct nmctx *ctx)
140 if (ctx->lock != NULL)