mirror of
https://github.com/dankamongmen/notcurses.git
synced 2024-11-09 19:10:48 +00:00
b5d8549bb3
This is to make it possible, in the future, to create multiple instances
of `NotCurses` for multiple terminals. The first instance of
`NotCurses` becomes the default one, so that any instances of other
classes that aren't explicitly created with a pointer to another
`NotCurses` instance still work as expected.
Note that currently trying to call `notcurses_init` twice results in the
following error for me:
0x55555559bfc0 is already registered for signals
Couldn't drop signals: 0x55555559bfc0 != 0x5555555b6720
terminate called after throwing an instance of 'ncpp::init_error*'
Program received signal SIGABRT, Aborted.
The error is signalled by `setup_signals` and the pointer shown in the
message points to the first `struct notcurses` instance created.
120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
#ifndef __NCPP_SUBPROC_HH
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#define __NCPP_SUBPROC_HH
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#include <notcurses/notcurses.h>
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#include "Root.hh"
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#include "Plane.hh"
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namespace ncpp
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{
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class NCPP_API_EXPORT Subproc : public Root
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{
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public:
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static ncsubproc_options default_options;
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public:
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explicit Subproc (Plane* n, const char* bin, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (n, bin, nullptr, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (const Plane* n, const char* bin, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (n, bin, nullptr, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (Plane* n, const char* bin, const ncsubproc_options* opts, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (static_cast<const Plane*>(n), bin, opts, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (const Plane* n, const char* bin, const ncsubproc_options* opts, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Root (Utilities::get_notcurses_cpp (n))
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{
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if (n == nullptr)
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throw invalid_argument ("'n' must be a valid pointer");
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create_subproc (const_cast<Plane&>(*n), bin, opts, use_path, arg, env, cbfxn, donecbfxn);
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}
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explicit Subproc (Plane const& n, const char* bin, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (n, bin, nullptr, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (Plane& n, const char* bin, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (n, bin, nullptr, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (Plane& n, const char* bin, const ncsubproc_options* opts, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Subproc (static_cast<Plane const&>(n), bin, opts, use_path, arg, env, cbfxn, donecbfxn)
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{}
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explicit Subproc (const Plane& n, const char* bin, const ncsubproc_options* opts, bool use_path = true,
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char* const arg[] = nullptr, char* const env[] = nullptr,
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ncfdplane_callback cbfxn = nullptr, ncfdplane_done_cb donecbfxn = nullptr)
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: Root (Utilities::get_notcurses_cpp (n))
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{
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create_subproc (const_cast<Plane&>(n), bin, opts, use_path, arg, env, cbfxn, donecbfxn);
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}
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~Subproc ()
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{
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if (is_notcurses_stopped ())
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return;
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ncsubproc_destroy (subproc);
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}
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Plane* get_plane () const noexcept
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{
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return Plane::map_plane (ncsubproc_plane (subproc));
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}
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private:
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void create_subproc (Plane& n, const char* bin, const ncsubproc_options* opts, bool use_path,
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char* const arg[], char* const env[],
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ncfdplane_callback cbfxn, ncfdplane_done_cb donecbfxn)
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{
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if (bin == nullptr)
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throw invalid_argument ("'bin' must be a valid pointer");
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if (opts == nullptr)
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opts = &default_options;
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if (use_path) {
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if (env != nullptr) {
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subproc = ncsubproc_createvpe (
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n, opts, bin, arg, env, cbfxn, donecbfxn
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);
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} else {
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subproc = ncsubproc_createvp (
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n, opts, bin, arg, cbfxn, donecbfxn
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);
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}
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} else {
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subproc = ncsubproc_createv (
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n, opts, bin, arg, cbfxn, donecbfxn
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);
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}
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if (subproc == nullptr)
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throw new init_error ("Notcurses failed to create ncsubproc instance");
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}
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private:
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ncsubproc *subproc;
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};
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}
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#endif // __NCPP_SUBPROC_HH
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