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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-11-13 17:16:28 +0200 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-11-13 17:16:28 +0200 |
| commit | 1a0188fac0c0f265c4495b83592389b8b3645462 (patch) | |
| tree | c1687724dd7f7ccf6d9d0d134c2766f14d3e39f5 /include/apos | |
| parent | e6dc962ef7758c438039d7f8ac7e2bf3ebcb5c10 (diff) | |
| download | kmi-1a0188fac0c0f265c4495b83592389b8b3645462.tar.gz kmi-1a0188fac0c0f265c4495b83592389b8b3645462.zip | |
outline rpc stack handling
Diffstat (limited to 'include/apos')
| -rw-r--r-- | include/apos/caps.h | 5 | ||||
| -rw-r--r-- | include/apos/conf.h | 14 | ||||
| -rw-r--r-- | include/apos/tcb.h | 8 |
3 files changed, 26 insertions, 1 deletions
diff --git a/include/apos/caps.h b/include/apos/caps.h index be64663..e762d0f 100644 --- a/include/apos/caps.h +++ b/include/apos/caps.h @@ -20,7 +20,7 @@ enum { /** Thread is allowed to set capabilities of other threads. */ CAP_CAPS = (1 << 0), - /** Thread is allowed to modify process statuses, exec/fork/etc. */ + /** Thread is allowed to modify process statuses, create/exec/fork/etc. */ CAP_PROC = (1 << 1), /** Thread is allowed to force interrupt to callback in other thread. */ @@ -28,6 +28,9 @@ enum { /** Thread is allowed to shut down system. */ CAP_POWER = (1 << 3), + + /** Thread is allowed to access configuration parameters. */ + CAP_CONF = (1 << 4), }; /** diff --git a/include/apos/conf.h b/include/apos/conf.h index 467b1e3..33fa8e5 100644 --- a/include/apos/conf.h +++ b/include/apos/conf.h @@ -23,10 +23,24 @@ extern size_t __thread_stack_size; /** * Provides access to the runtime global parameter. + * Must be at most RPC_STACK_TOP - RPC_STACK_BASE. + * * \see __thread_stack_size. * \global * \todo This should probably also be a function instead. */ extern size_t __call_stack_size; +/** + * Provides access to the runtime global parameter. This sets the maximum size + * a single rpc stack instance can be. + * + * Must be at most a fourth of \ref __call_stack_size? + * (that way we can maybe pretty quickly check that we're running out of memory + * for stack stuff and can return an error about it) + * + * \global + */ +extern size_t __rpc_stack_size; + #endif /* APOS_CONF_H */ diff --git a/include/apos/tcb.h b/include/apos/tcb.h index 6097153..981f352 100644 --- a/include/apos/tcb.h +++ b/include/apos/tcb.h @@ -389,4 +389,12 @@ void save_context(struct tcb *t); */ void load_context(struct tcb *t); +/** + * Check that we have enough rpc stack. + * + * @param t Thread whose rpc stack to check. + * @return \ref true if we have enough, \ref false otherwise. + */ +bool enough_rpc_stack(struct tcb *t); + #endif /* APOS_TCB_H */ |