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ircd:Ⓜ️:exec: Add options structure; add logging/detach related options.

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This commit is contained in:
Jason Volk 2020-10-20 17:06:36 -07:00
parent e5b0fe25c7
commit 86a8509b26
2 changed files with 41 additions and 4 deletions
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26
include/ircd/exec.h
View file

@ -34,6 +34,7 @@ namespace boost::process
struct ircd::exec
:instance_list<ircd::exec>
{
struct opts;
using args = vector_view<const string_view>;
using const_buffers = vector_view<const const_buffer>;
using mutable_buffers = vector_view<const mutable_buffer>;
@ -42,6 +43,7 @@ struct ircd::exec
static uint64_t id_ctr;
uint64_t id {0};
std::unique_ptr<opts> opt;
std::string path;
std::vector<std::string> argv;
std::unique_ptr<pair<boost::process::async_pipe>> pipe;
@ -55,6 +57,7 @@ struct ircd::exec
bool signal(const int &sig);
long join(const int &sig = 0);
exec(const args &, const opts &);
exec(const args &);
exec(exec &&) = delete;
exec(const exec &) = delete;
@ -63,6 +66,29 @@ struct ircd::exec
~exec() noexcept;
};
/// Exec options
///
struct ircd::exec::opts
{
/// When false (default) the child is terminated by the dtor of
/// ircd::exec. Note setting this to true does not detach the boost
/// handles until destruction time; it also does not affect calling
/// the interface join() manually.
bool detach {false};
/// Child executions will be logged at this level (use DEBUG to quiet)
ircd::log::level exec_log_level = ircd::log::level::NOTICE;
/// Child exits will be logged at this level (use DEBUG to quiet); note
/// non-zero exits are still logged with level::ERROR.
ircd::log::level exit_log_level = ircd::log::level::INFO;
};
inline
ircd::exec::exec(const args &args)
:exec{args, opts{}}
{}
inline ircd::const_buffer
ircd::write(exec &p,
const const_buffer &buf)

19
ircd/exec.cc
View file

@ -30,11 +30,16 @@ ircd::util::instance_list<ircd::exec>::list
allocator
};
ircd::exec::exec(const args &args)
ircd::exec::exec(const args &args,
const opts &opt)
:id
{
++id_ctr
}
,opt
{
std::make_unique<opts>(opt)
}
,path
(
args.at(0)
@ -66,9 +71,10 @@ ircd::exec::exec(const args &args)
child->id()
}
{
log::notice
log::logf
{
log, "id:%lu pid:%ld `%s' exec argc:%zu",
log, this->opt->exec_log_level,
"id:%lu pid:%ld `%s' exec argc:%zu",
id,
pid,
path,
@ -79,6 +85,10 @@ ircd::exec::exec(const args &args)
ircd::exec::~exec()
noexcept try
{
assert(opt);
if(opt->detach)
return;
join(SIGKILL);
}
catch(const std::exception &e)
@ -126,10 +136,11 @@ try
assert(!child->running());
code = child->exit_code();
assert(opt);
const auto &level
{
code == 0?
log::level::INFO:
opt->exit_log_level:
log::level::ERROR
};