diff options
author | Eric Andersen <andersen@codepoet.org> | 2002-02-13 09:32:52 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2002-02-13 09:32:52 +0000 |
commit | 80e6061ac5deca193759b979d34906bfc9b857ef (patch) | |
tree | 51f5c410f9313c6892b50f27321b64db8cfbd737 /test/stdlib/testatexit.c | |
parent | 98cba6e7dd947aec0d4cf6e61f2f31318ac919e1 (diff) |
Several test suite updates. The testatexit, teston_exit, and
pthread tests were contributed by Stefan Soucek
Diffstat (limited to 'test/stdlib/testatexit.c')
-rw-r--r-- | test/stdlib/testatexit.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/test/stdlib/testatexit.c b/test/stdlib/testatexit.c new file mode 100644 index 000000000..374f7b8aa --- /dev/null +++ b/test/stdlib/testatexit.c @@ -0,0 +1,74 @@ +/* + * This test program will register the maximum number of exit functions + * with atexit(). When this program exits, each exit function should get + * called in the reverse order in which it was registered. (If the system + * supports more than 25 exit functions, the function names will loop, but + * the effect will be the same. Feel free to add more functions if desired) + */ +#include <stdio.h> +#include <stdlib.h> + +typedef void (*vfuncp) (void); + +/* All functions call exit(), in order to test that exit functions can call + * exit() without screwing everything up. :) + */ +static void exitfunc0(void) { printf("Executing exitfunc0.\n"); exit(0);} +static void exitfunc1(void) { printf("Executing exitfunc1.\n"); exit(0);} +static void exitfunc2(void) { printf("Executing exitfunc2.\n"); exit(0);} +static void exitfunc3(void) { printf("Executing exitfunc3.\n"); exit(0);} +static void exitfunc4(void) { printf("Executing exitfunc4.\n"); exit(0);} +static void exitfunc5(void) { printf("Executing exitfunc5.\n"); exit(0);} +static void exitfunc6(void) { printf("Executing exitfunc6.\n"); exit(0);} +static void exitfunc7(void) { printf("Executing exitfunc7.\n"); exit(0);} +static void exitfunc8(void) { printf("Executing exitfunc8.\n"); exit(0);} +static void exitfunc9(void) { printf("Executing exitfunc9.\n"); exit(0);} +static void exitfunc10(void) { printf("Executing exitfunc10.\n"); exit(0);} +static void exitfunc11(void) { printf("Executing exitfunc11.\n"); exit(0);} +static void exitfunc12(void) { printf("Executing exitfunc12.\n"); exit(0);} +static void exitfunc13(void) { printf("Executing exitfunc13.\n"); exit(0);} +static void exitfunc14(void) { printf("Executing exitfunc14.\n"); exit(0);} +static void exitfunc15(void) { printf("Executing exitfunc15.\n"); exit(0);} +static void exitfunc16(void) { printf("Executing exitfunc16.\n"); exit(0);} +static void exitfunc17(void) { printf("Executing exitfunc17.\n"); exit(0);} +static void exitfunc18(void) { printf("Executing exitfunc18.\n"); exit(0);} +static void exitfunc19(void) { printf("Executing exitfunc19.\n"); exit(0);} +static void exitfunc20(void) { printf("Executing exitfunc20.\n"); exit(0);} +static void exitfunc21(void) { printf("Executing exitfunc21.\n"); exit(0);} +static void exitfunc22(void) { printf("Executing exitfunc22.\n"); exit(0);} +static void exitfunc23(void) { printf("Executing exitfunc23.\n"); exit(0);} +static void exitfunc24(void) { printf("Executing exitfunc24.\n"); exit(0);} + +static vfuncp func_table[] = + { + exitfunc0, exitfunc1, exitfunc2, exitfunc3, exitfunc4, + exitfunc5, exitfunc6, exitfunc7, exitfunc8, exitfunc9, + exitfunc10, exitfunc11, exitfunc12, exitfunc13, exitfunc14, + exitfunc15, exitfunc16, exitfunc17, exitfunc18, exitfunc19, + exitfunc20, exitfunc21, exitfunc22, exitfunc23, exitfunc24 + }; + +/* glibc dynamically adds exit functions, so it will keep adding until + * it runs out of memory! So this will limit the number of exit functions + * we add in the loop below. uClibc has a set limit (currently 20), so the + * loop will go until it can't add any more (so it should not hit this limit). + */ +#define ATEXIT_LIMIT 20 + +int +main ( void ) +{ + int i = 0; + int count = 0; + int numfuncs = sizeof(func_table)/sizeof(vfuncp); + + /* loop until no more can be added */ + while(count < ATEXIT_LIMIT && atexit(func_table[i]) >= 0) { + printf("Registered exitfunc%d with atexit()\n", i); + count++; + i = (i+1) % numfuncs; + } + printf("%d functions registered with atexit.\n", count); + /* implicit exit */ +} + |