X-Git-Url: http://ncurses.scripts.mit.edu/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fhtml%2Fman%2Fcurs_memleaks.3x.html;h=7ac7342bf57a8e4ccd15964dcfc96f80ac9b55cd;hb=c11444e368f1d5964bd0f81e6e3b0f8c8ccd09cc;hp=ecac055ec42a624daf0001eb6b404d9a0f9f73cb;hpb=b0b1980be11bba618d84beb8b30ac94e2c820602;p=ncurses.git diff --git a/doc/html/man/curs_memleaks.3x.html b/doc/html/man/curs_memleaks.3x.html index ecac055e..7ac7342b 100644 --- a/doc/html/man/curs_memleaks.3x.html +++ b/doc/html/man/curs_memleaks.3x.html @@ -1,7 +1,7 @@ - - +
+ +- -curs_memleaks(3x) curs_memleaks(3x) +curs_memleaks(3x) curs_memleaks(3x) --
- _nc_freeall _nc_free_and_exit - curses memory-leak - checking +
+ exit_curses, exit_terminfo - curses memory-leak checking --
+
#include <curses.h> + void exit_curses(int code); + + #include <term.h> + void exit_terminfo(int code); + /* deprecated (intentionally not declared in curses.h or term.h) */ void _nc_freeall(void); - void _nc_free_and_exit(int); + void _nc_free_and_exit(int code); + void _nc_free_tinfo(int code); --
- These functions are used to simplify analysis of memory - leaks in the ncurses library. They are normally not - available; they must be configured into the library at - build time using the --disable-leaks option. That com- - piles-in code that frees memory that normally would not be - freed. - - Any implementation of curses must not free the memory as- - sociated with a screen, since (even after calling endwin), - it must be available for use in the next call to refresh. - There are also chunks of memory held for performance rea- - sons. That makes it hard to analyze curses applications - for memory leaks. To work around this, one can build a - debugging version of the ncurses library which frees those - chunks which it can, and provides these functions to free - all of the memory allocated by the ncurses library. - - The _nc_free_and_exit function is the preferred one since - some of the memory which is freed may be required for the - application to continue running. Its parameter is the - code to pass to the exit routine. +
+ These functions are used to simplify analysis of memory leaks in the + ncurses library. + Any implementation of curses must not free the memory associated with a + screen, since (even after calling endwin(3x)), it must be available for + use in the next call to refresh(3x). There are also chunks of memory + held for performance reasons. That makes it hard to analyze curses ap- + plications for memory leaks. When using the specially configured de- + bugging version of the ncurses library, applications can call functions + which free those chunks of memory, simplifying the process of memory- + leak checking. --
+ Some of the functions are named with a "_nc_" prefix because they are + not intended for use in the non-debugging library: + + _nc_freeall + This frees (almost) all of the memory allocated by ncurses. + + _nc_free_and_exit + This frees the memory allocated by ncurses (like _nc_freeall), and + exits the program. It is preferred over _nc_freeall since some of + that memory may be required to keep the application running. Sim- + ply exiting (with the given exit-code) is safer. + + _nc_free_tinfo + Use this function if only the low-level terminfo functions (and + corresponding library) are used. Like _nc_free_and_exit, it exits + the program after freeing memory. + + The functions prefixed "_nc" are normally not available; they must be + configured into the library at build time using the --disable-leaks op- + tion. That compiles-in code that frees memory that normally would not + be freed. + + The exit_curses and exit_terminfo functions call _nc_free_and_exit and + _nc_free_tinfo if the library is configured to support memory-leak + checking. If the library is not configured to support memory-leak + checking, they simply call exit. + + +
These functions do not return a value. --
- These functions are not part of the XSI interface. +
+ These functions are not part of X/Open Curses; nor do other implementa- + tions of curses provide a similar feature. + In any implementation of X/Open Curses, an application can free part of + the memory allocated by curses: --
- curses(3x). + o The portable part of exit_curses can be freed using delscreen, + passing the SCREEN* pointer returned by newterm. + + In some implementations, there is a global variable sp which could + be used, e.g., if the screen were only initialized using initscr. + + o The portable part of exit_terminfo can be freed using del_curterm. + + In this case, there is a global variable cur_term which can be used + as parameter. + + +
+ curs_initscr(3x), curs_terminfo(3x). curses(3x). - curs_memleaks(3x) + curs_memleaks(3x)-