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https://github.com/fish-shell/fish-shell
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10da6df506
Introduce pgroup_provenance_t, a type which captures "where the pgroup comes from." This centralizes some logic around how pgroups are assigned, and it anticipates concurrent execution.
42 lines
1.7 KiB
C++
42 lines
1.7 KiB
C++
// Prototypes for functions for executing a program.
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#ifndef FISH_EXEC_H
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#define FISH_EXEC_H
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#include <stddef.h>
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#include <vector>
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#include "common.h"
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#include "proc.h"
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/// Pipe redirection error message.
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#define PIPE_ERROR _(L"An error occurred while setting up pipe")
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/// Execute the processes specified by \p j in the parser \p.
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bool exec_job(parser_t &parser, const std::shared_ptr<job_t> &j, const job_lineage_t &lineage);
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/// Evaluate a command.
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///
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/// \param cmd the command to execute
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/// \param parser the parser with which to execute code
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/// \param outputs the list to insert output into.
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/// \param apply_exit_status if set, update $status within the parser, otherwise do not.
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///
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/// \return a value appropriate for populating $status.
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int exec_subshell(const wcstring &cmd, parser_t &parser, bool apply_exit_status);
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int exec_subshell(const wcstring &cmd, parser_t &parser, wcstring_list_t &outputs,
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bool apply_exit_status);
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/// Like exec_subshell, but only returns expansion-breaking errors. That is, a zero return means
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/// "success" (even though the command may have failed), a non-zero return means that we should
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/// halt expansion.
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int exec_subshell_for_expand(const wcstring &cmd, parser_t &parser, wcstring_list_t &outputs);
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/// Loops over close until the syscall was run without being interrupted.
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void exec_close(int fd);
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/// Compute the "pgroup provenance" for a job. This is a description of how the pgroup is
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/// assigned. It's factored out because the logic has subtleties, and this centralizes it.
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pgroup_provenance_t get_pgroup_provenance(const std::shared_ptr<job_t> &j,
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const job_lineage_t &lineage);
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#endif
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