diff options
author | João Valverde <j@v6e.pt> | 2021-07-12 21:22:05 +0100 |
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committer | Wireshark GitLab Utility <gerald+gitlab-utility@wireshark.org> | 2021-07-26 14:56:11 +0000 |
commit | 7f9c1f5f92c131354fc8b2b88d473706786064c0 (patch) | |
tree | 9249c0eda50dea18e8b85e8aeb8c1d3c98a007cb /wsutil/wmem/wmem_strbuf.h | |
parent | 8310665ae707b589e04167ef9bd2aed6f71651f3 (diff) |
Move wmem to wsutil
This allows wmem to be used from other libraries, namely wsutil.
It is often the case that a funtion exists in wsutil and cannot
be used with a wmem scope, requiring some code duplication or
extra memory allocations, or vice-versa, code in epan cannot be
moved to wsutil because it has a wmem dependency.
To this end wmem is moved to wsutil. Scope management remains part
of epan because those scope semantics are specific to dissection.
Diffstat (limited to 'wsutil/wmem/wmem_strbuf.h')
-rw-r--r-- | wsutil/wmem/wmem_strbuf.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/wsutil/wmem/wmem_strbuf.h b/wsutil/wmem/wmem_strbuf.h new file mode 100644 index 0000000000..d2f4b3bb2e --- /dev/null +++ b/wsutil/wmem/wmem_strbuf.h @@ -0,0 +1,120 @@ +/* wmem_strbuf.h + * Definitions for the Wireshark Memory Manager String Buffer + * Copyright 2012, Evan Huus <eapache@gmail.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef __WMEM_STRBUF_H__ +#define __WMEM_STRBUF_H__ + +#include <string.h> +#include <glib.h> + +#include "wmem_core.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/** @addtogroup wmem + * @{ + * @defgroup wmem-strbuf String Buffer + * + * A string object implementation on top of wmem. + * + * @{ + */ + +struct _wmem_strbuf_t; + +typedef struct _wmem_strbuf_t wmem_strbuf_t; + +WS_DLL_PUBLIC +wmem_strbuf_t * +wmem_strbuf_sized_new(wmem_allocator_t *allocator, + gsize alloc_len, gsize max_len) +G_GNUC_MALLOC; + +#define wmem_strbuf_new_label(ALLOCATOR) \ + wmem_strbuf_sized_new((ALLOCATOR), 0, ITEM_LABEL_LENGTH) + +WS_DLL_PUBLIC +wmem_strbuf_t * +wmem_strbuf_new(wmem_allocator_t *allocator, const gchar *str) +G_GNUC_MALLOC; + +WS_DLL_PUBLIC +void +wmem_strbuf_append(wmem_strbuf_t *strbuf, const gchar *str); + +/* Appends up to append_len bytes (as allowed by strbuf->max_len) from + * str. Ensures that strbuf is null terminated afterwards but will copy + * embedded nulls. */ +WS_DLL_PUBLIC +void +wmem_strbuf_append_len(wmem_strbuf_t *strbuf, const gchar *str, gsize append_len); + +WS_DLL_PUBLIC +void +wmem_strbuf_append_printf(wmem_strbuf_t *strbuf, const gchar *format, ...) +G_GNUC_PRINTF(2, 3); + +WS_DLL_PUBLIC +void +wmem_strbuf_append_vprintf(wmem_strbuf_t *strbuf, const gchar *fmt, va_list ap); + +WS_DLL_PUBLIC +void +wmem_strbuf_append_c(wmem_strbuf_t *strbuf, const gchar c); + +WS_DLL_PUBLIC +void +wmem_strbuf_append_unichar(wmem_strbuf_t *strbuf, const gunichar c); + +WS_DLL_PUBLIC +void +wmem_strbuf_truncate(wmem_strbuf_t *strbuf, const gsize len); + +WS_DLL_PUBLIC +const gchar * +wmem_strbuf_get_str(wmem_strbuf_t *strbuf); + +WS_DLL_PUBLIC +gsize +wmem_strbuf_get_len(wmem_strbuf_t *strbuf); + +/** Truncates the allocated memory down to the minimal amount, frees the header + * structure, and returns a non-const pointer to the raw string. The + * wmem_strbuf_t structure cannot be used after this is called. Basically a + * destructor for when you still need the underlying C-string. + */ +WS_DLL_PUBLIC +char * +wmem_strbuf_finalize(wmem_strbuf_t *strbuf); + +/** @} + * @} */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __WMEM_STRBUF_H__ */ + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * vi: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |