BRK
Section: ¸®´ª½º ÇÁ·Î±×·¡¸Ó ¸Å´º¾ó (2)
Updated: 1993³â 7¿ù 21ÀÏ
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À̸§
brk, sbrk - µ¥ÀÌÅÍ ¼¼±×¸ÕÆ® Å©±â¸¦ º¯°æÇÑ´Ù.
»ç¿ë¹ý
#include <unistd.h>
int brk(void *end_data_segment);
void *sbrk(ptrdiff_t increment);
¼³¸í
brk˼
µ¥ÀÌÅÍ ¼¼±×¸ÕÆ®ÀÇ ³¡À»
end_data_segmentÀ¸·Î
ÁöÁ¤µÈ °ªÀ¸·Î ¼³Á¤ÇÑ´Ù.
end_datasegment´Â
ÅؽºÆ® ¼¼±×¸ÕÆ®ÀÇ ³¡º¸´Ù Ä¿¾ß ÇÏ¸ç ½ºÅÃÀÇ ³¡º¸´Ù 16kB ¾Õ¿¡ ÀÖ¾î¾ß ÇÑ´Ù.
sbrk´Â
increment
¹ÙÀÌÆ®¸¸Å ÇÁ·Î±×·¥ÀÇ µ¥ÀÌÅÍ °ø°£À» Áõ°¡½ÃŲ´Ù.
sbrk´Â
½Ã½ºÅÛ ÄÝÀÌ ¾Æ´Ï¸ç, ´ÜÁö C ¶óÀ̺귯¸® ·¹ÆÛ(wrapper) ÇÔ¼öÀÌ´Ù.
¹Ýȯ°ª
¼º°ø½Ã,
brk´Â
0À» ¸®ÅÏÇϸç,
sbrk´Â
»õ·Î¿î ¿µ¿ªÀÇ ½ÃÀÛÀ» °¡¸®Å°´Â Æ÷ÀÎÅ͸¦ ¸®ÅÏÇÑ´Ù.
¿¡·¯½Ã, -1ÀÌ ¸®ÅϵǸç,
errno´Â
ENOMEM
À¸·Î ¼³Á¤µÈ´Ù.
ȣȯ
BSD 4.3
brk¿Í sbrk´Â
C Ç¥ÁØ¿¡ Á¤ÀǵǾî ÀÖÁö ¾ÊÀ¸¸ç POSIX.1 Ç¥ÁØ¿¡¼µµ Á¦¿ÜµÇ¾ú´Ù.
(paragraphs B.1.1.1.3°ú B.8.3.3 ÂüÁ¶Ç϶ó)
°ü·Ã Ç׸ñ
execve(2),
getrlimit(2),
malloc(3)
¿ªÀÚ
Á¤°ÈÆ <skyeyes@soback.kornet.net>, 2000³â 5¿ù 1ÀÏ
Index
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