diff options
Diffstat (limited to 'ncurses-5.9/ncurses/trace/trace_buf.c')
-rw-r--r-- | ncurses-5.9/ncurses/trace/trace_buf.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/ncurses-5.9/ncurses/trace/trace_buf.c b/ncurses-5.9/ncurses/trace/trace_buf.c new file mode 100644 index 0000000..a54e82b --- /dev/null +++ b/ncurses-5.9/ncurses/trace/trace_buf.c @@ -0,0 +1,119 @@ +/**************************************************************************** + * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Thomas E. Dickey 1997-on * + ****************************************************************************/ +/* + * trace_buf.c - Tracing/Debugging buffers (attributes) + */ + +#include <curses.priv.h> + +MODULE_ID("$Id$") + +#ifdef TRACE + +#define MyList _nc_globals.tracebuf_ptr +#define MySize _nc_globals.tracebuf_used + +static char * +_nc_trace_alloc(int bufnum, size_t want) +{ + char *result = 0; + + if (bufnum >= 0) { + if ((size_t) (bufnum + 1) > MySize) { + size_t need = (size_t) (bufnum + 1) * 2; + if ((MyList = typeRealloc(TRACEBUF, need, MyList)) != 0) { + while (need > MySize) + MyList[MySize++].text = 0; + } + } + + if (MyList != 0) { + if (MyList[bufnum].text == 0 + || want > MyList[bufnum].size) { + MyList[bufnum].text = typeRealloc(char, want, MyList[bufnum].text); + if (MyList[bufnum].text != 0) + MyList[bufnum].size = want; + } + result = MyList[bufnum].text; + } + } +#if NO_LEAKS + else { + if (MySize) { + if (MyList) { + while (MySize--) { + if (MyList[MySize].text != 0) { + free(MyList[MySize].text); + } + } + free(MyList); + MyList = 0; + } + MySize = 0; + } + } +#endif + return result; +} + +/* + * (re)Allocate a buffer big enough for the caller's wants. + */ +NCURSES_EXPORT(char *) +_nc_trace_buf(int bufnum, size_t want) +{ + char *result = _nc_trace_alloc(bufnum, want); + if (result != 0) + *result = '\0'; + return result; +} + +/* + * Append a new string to an existing buffer. + */ +NCURSES_EXPORT(char *) +_nc_trace_bufcat(int bufnum, const char *value) +{ + char *buffer = _nc_trace_alloc(bufnum, 0); + if (buffer != 0) { + size_t have = strlen(buffer); + + buffer = _nc_trace_alloc(bufnum, 1 + have + strlen(value)); + if (buffer != 0) + (void) strcpy(buffer + have, value); + + } + return buffer; +} +#else +EMPTY_MODULE(_nc_empty_trace_buf) +#endif /* TRACE */ |