44 lines
750 B
C
44 lines
750 B
C
#include <stdarg.h>
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#include <string.h>
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#include <kmsg.h>
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#include <aal/debug.h>
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struct aal_kmsg_buf kmsg_buf AAL_KMSG_ALIGN;
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extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
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/* TODO: lock */
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void kputs(char *buf)
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{
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int len = strlen(buf);
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if (len + kmsg_buf.tail > kmsg_buf.len) {
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len = kmsg_buf.len - kmsg_buf.tail;
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}
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strncpy(kmsg_buf.str, buf, len);
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kmsg_buf.tail += len;
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}
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int kprintf(const char *format, ...)
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{
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int len;
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va_list va;
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va_start(va, format);
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len = vsnprintf(kmsg_buf.str + kmsg_buf.tail,
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kmsg_buf.len - kmsg_buf.tail, format, va);
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kmsg_buf.tail += len;
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va_end(va);
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return len;
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}
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void kmsg_init(void)
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{
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kmsg_buf.tail = 0;
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kmsg_buf.len = sizeof(kmsg_buf.str);
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}
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