diff options
Diffstat (limited to 'kern/thread.h')
| -rw-r--r-- | kern/thread.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/kern/thread.h b/kern/thread.h index aa5dc4f7..d1c5f53a 100644 --- a/kern/thread.h +++ b/kern/thread.h @@ -39,6 +39,7 @@ #include <kern/list.h> #include <kern/macros.h> #include <kern/param.h> +#include <kern/types.h> #include <machine/atomic.h> #include <machine/cpu.h> #include <machine/tcb.h> @@ -59,7 +60,8 @@ struct thread_ts_runq; /* * Thread flags. */ -#define THREAD_YIELD 0x1UL /* Must yield the processor ASAP */ +#define THREAD_YIELD 0x1UL /* Must yield the processor ASAP */ +#define THREAD_DETACHED 0x2UL /* Resources automatically released on exit */ /* * Thread states. @@ -172,6 +174,11 @@ struct thread { /* Thread-specific data */ void *tsd[THREAD_KEYS_MAX]; + /* Members related to termination */ + struct mutex join_lock; + struct condition join_cond; + int exited; + /* Read-only members */ struct task *task; struct list task_node; @@ -181,11 +188,14 @@ struct thread { void *arg; } __aligned(CPU_L1_SIZE); +#define THREAD_ATTR_DETACHED 0x1 + /* * Thread creation attributes. */ struct thread_attr { const char *name; + unsigned long flags; struct cpumap *cpumap; struct task *task; unsigned char policy; @@ -196,6 +206,7 @@ struct thread_attr { * Initialize thread creation attributes with default values. * * It is guaranteed that these default values include : + * - thread is joinable * - no processor affinity * - task is inherited from parent thread * - policy is time-sharing @@ -208,6 +219,7 @@ static inline void thread_attr_init(struct thread_attr *attr, const char *name) { attr->name = name; + attr->flags = 0; attr->cpumap = NULL; attr->task = NULL; attr->policy = THREAD_SCHED_POLICY_TS; @@ -215,6 +227,12 @@ thread_attr_init(struct thread_attr *attr, const char *name) } static inline void +thread_attr_set_detached(struct thread_attr *attr) +{ + attr->flags |= THREAD_ATTR_DETACHED; +} + +static inline void thread_attr_set_cpumap(struct thread_attr *attr, struct cpumap *cpumap) { attr->cpumap = cpumap; @@ -268,6 +286,11 @@ int thread_create(struct thread **threadp, const struct thread_attr *attr, void __noreturn thread_exit(void); /* + * Wait for the given thread to terminate and release its resources. + */ +void thread_join(struct thread *thread); + +/* * Make the current thread sleep while waiting for an event. * * The interlock is used to synchronize the thread state with respect to |