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99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/* include/g/m.h
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**
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** This file is in the public domain.
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*/
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/** System management.
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**/
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/* u3_cm_boot(): make u3R and u3H from `len` words at `adr`.
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*/
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void
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u3_cm_boot(c3_p adr_p, c3_w len_w);
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/* u3_cm_trap(): setjmp within road.
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*/
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#if 0
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u3_bean
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u3_cm_trap(void);
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#else
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# define u3_cm_trap() (u3_noun)(setjmp(u3R->esc.buf))
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#endif
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/* u3_cm_bail(): bail out. Does not return.
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**
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** Bail motes:
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**
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** %exit :: semantic failure
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** %evil :: bad crypto
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** %intr :: interrupt
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** %fail :: execution failure
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** %foul :: assert failure
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** %need :: network block
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** %meme :: out of memory
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*/
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c3_i
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u3_cm_bail(c3_m how_m);
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/* u3_cm_dump(): dump the current road to stderr.
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*/
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void
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u3_cm_dump(void);
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/* u3_cm_clear(): clear all allocated data in road.
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*/
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void
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u3_cm_clear(void);
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/* u3_cm_error(): bail out with %exit, ct_pushing error.
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*/
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c3_i
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u3_cm_error(c3_c* str_c);
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/* u3_cm_grab(): garbage-collect memory. Asserts u3R == u3H.
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*/
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void
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u3_cm_grab(void);
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/* u3_cm_check(): checkpoint memory to file. Asserts u3R == u3H.
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*/
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void
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u3_cm_check(void);
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/* u3_cm_fall(): return to parent road.
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*/
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void
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u3_cm_fall(void);
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/* u3_cm_leap(): advance to inner road.
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*/
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void
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u3_cm_leap(void);
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/* u3_cm_golf(): record cap length for u3_flog().
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*/
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c3_w
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u3_cm_golf(void);
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/* u3_cm_flog(): pop the cap.
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**
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** A common sequence for inner allocation is:
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**
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** c3_w gof_w = u3_cm_golf();
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** u3_cm_leap();
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** // allocate some inner stuff...
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** u3_cm_fall();
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** // inner stuff is still valid, but on cap
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** u3_cm_flog(gof_w);
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**
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** u3_cm_flog(0) simply clears the cap.
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*/
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void
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u3_cm_flog(c3_w gof_w);
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/* u3_cm_water(): produce high and low watermarks. Asserts u3R == u3H.
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*/
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void
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u3_cm_water(c3_w *low_w, c3_w *hig_w);
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