69 lines
1.0 KiB
Plaintext
69 lines
1.0 KiB
Plaintext
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.TH VENTI-MEM 2
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.SH NAME
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vtbrk,
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vtmalloc,
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vtmallocz,
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vtrealloc,
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vtstrdup,
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vtfree \- error-checking memory allocators
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.SH SYNOPSIS
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.ft L
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#include <u.h>
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.br
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#include <libc.h>
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.br
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#include <venti.h>
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.ta +\w'\fLvoid* 'u
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.PP
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.B
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void* vtbrk(int size)
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.PP
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.B
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void* vtmalloc(int size)
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.PP
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.B
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void* vtmallocz(int size)
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.PP
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.B
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void* vtrealloc(void *ptr, int size)
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.PP
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.B
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char* vtstrdup(char *s)
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.PP
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.B
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void vtfree(void *ptr)
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.SH DESCRIPTION
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These routines allocate and free memory.
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On failure, they print an error message and call
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.IR sysfatal
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(from
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.IR perror (2)).
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They do not return.
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.PP
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.I Vtbrk
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returns a pointer to a new, permanently allocated block of at least
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.I size
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bytes.
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.PP
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.IR Vtmalloc ,
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.IR vtrealloc ,
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and
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.I vtstrdup
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are like
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.IR malloc ,
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.IR realloc ,
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and
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.IR strdup ,
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but, as noted above, do not return on error.
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.I Vtmallocz
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is like
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.I vtmalloc
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but zeros the block before returning it.
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Memory allocated with all four should be freed with
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.I vtfree
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when no longer needed.
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.SH SOURCE
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.B /sys/src/libventi
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.SH SEE ALSO
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.IR venti (2)
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