gbowne1 version of implementation with more implementations done #4
14
main.c
14
main.c
@ -1,19 +1,11 @@
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#include <stddef.h>
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#include <stdio.h>
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#include <unistd.h>
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<<<<<<< HEAD
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#include <stdlib.h>
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=======
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#include <sys/syscall.h>
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>>>>>>> origin/main
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#define ALIGN16(s) (((s) + 15) & ~0x0F)
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#define BLOCK_SIZE sizeof(struct block)
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<<<<<<< HEAD
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#define MINIMUM_BLOCK_SIZE (sizeof(struct block) + 16)
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=======
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#define MINIMUM_BLOCK_SIZE 4
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>>>>>>> origin/main
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/// The memory block's header.
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struct block
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@ -36,18 +28,12 @@ struct block *extend_heap(size_t s)
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if (s < MINIMUM_BLOCK_SIZE)
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s = MINIMUM_BLOCK_SIZE;
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<<<<<<< HEAD
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struct block *b = (struct block *)sbrk(0); // Get the current break
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// Add the size of the block header to the requested size
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s += BLOCK_SIZE;
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if (sbrk(s) == (void *)-1) // Extend the break by s bytes
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=======
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struct block* b = (struct block*)syscall(SYS_brk, NULL);
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if ((void*)syscall(SYS_brk, (char*)(b + 1) + s) == (void*)-1)
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>>>>>>> origin/main
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return NULL;
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b->size = s;
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