On Tue, Jul 5, 2016 at 9:56 AM, Justin Cinkelj <justin.cink...@xlab.si>
wrote:
> Signed-off-by: Justin Cinkelj <justin.cink...@xlab.si>
> ---
> Makefile | 1 +
> core/osv_c_wrappers.cc | 33 +++++++++++++++++++++++++++++++++
> include/osv/osv_c_wrappers.h | 27 +++++++++++++++++++++++++++
> 3 files changed, 61 insertions(+)
> create mode 100644 core/osv_c_wrappers.cc
> create mode 100644 include/osv/osv_c_wrappers.h
>
> diff --git a/Makefile b/Makefile
> index 7e15d0e..95da609 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -908,6 +908,7 @@ objects += core/net_trace.o
> objects += core/app.o
> objects += core/libaio.o
> objects += core/osv_execve.o
> +objects += core/osv_c_wrappers.o
>
> #include $(src)/libc/build.mk:
> libc =
> diff --git a/core/osv_c_wrappers.cc b/core/osv_c_wrappers.cc
> new file mode 100644
> index 0000000..abd5fe3
> --- /dev/null
> +++ b/core/osv_c_wrappers.cc
> @@ -0,0 +1,33 @@
> +
> +#include <osv/debug.hh>
> +#include <osv/sched.hh>
> +#include <osv/app.hh>
> +
> +using namespace osv;
>
Are you actually using anything from the "osv" namespace? (maybe you are, I
just didn't notice).
> +using namespace sched;
> +
> +extern "C" {
>
If you #include osv_c_wrappers.h (which you should), you won't need this
"extern C" because it would be already in the header file.
> +
> +int osv_get_all_app_threads(pid_t tid, pid_t** tid_arr, size_t *len) {
> + thread* app_thread = tid==0? thread::current():
> thread::find_by_id(tid);
> + if (app_thread == nullptr) {
> + return ESRCH;
> + }
> + std::vector<thread*> app_threads;
> + with_all_app_threads([&](thread& th2) {
> + app_threads.push_back(&th2);
> + }, *app_thread);
> +
> + *tid_arr = (pid_t*)malloc(app_threads.size()*sizeof(pid_t));
> + if (*tid_arr == nullptr) {
> + *len = 0;
> + return ENOMEM;
> + }
> + *len = 0;
> + for (auto th : app_threads) {
> + (*tid_arr)[(*len)++] = th->id();
> + }
> + return 0;
> +}
> +
> +}
> diff --git a/include/osv/osv_c_wrappers.h b/include/osv/osv_c_wrappers.h
> new file mode 100644
> index 0000000..acef016
> --- /dev/null
> +++ b/include/osv/osv_c_wrappers.h
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright (C) 2016 XLAB, d.o.o.
> + *
> + * This work is open source software, licensed under the terms of the
> + * BSD license as described in the LICENSE file in the top-level
> directory.
> + */
> +
> +#ifndef INCLUDED_OSV_C_WRAPPERS_H
> +#define INCLUDED_OSV_C_WRAPPERS_H
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +/*
> +Save in *tid_arr array TIDs of all threads from app which "owns" input
> tid/thread.
> +*tid_arr is allocated with malloc, *len holds lenght.
> +Caller is responsible to free tid_arr.
> +Returns 0 on success, error code on error.
> +*/
> +int osv_get_all_app_threads(pid_t tid, pid_t** tid_arr, size_t* max_len);
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* INCLUDED_OSV_C_WRAPPERS_H */
> --
> 2.5.0
>
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