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Restore correct order of IO redirections

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Fixes https://github.com/fish-shell/fish-shell/issues/281
This commit is contained in:
ridiculousfish 2012-08-19 14:09:39 -07:00
parent e3ec361552
commit 9145d05397
3 changed files with 10 additions and 10 deletions
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2
exec.cpp
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@ -408,7 +408,7 @@ void exec( parser_t &parser, job_t *j )
if( ! parser.block_io.empty() ) if( ! parser.block_io.empty() )
{ {
io_duplicate_append(parser.block_io, j->io); io_duplicate_prepend(parser.block_io, j->io);
} }
const io_data_t *input_redirect = NULL; const io_data_t *input_redirect = NULL;

11
io.cpp
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@ -179,13 +179,14 @@ io_chain_t io_chain_t::duplicate() const
return result; return result;
} }
void io_chain_t::duplicate_append(const io_chain_t &src) void io_chain_t::duplicate_prepend(const io_chain_t &src)
{ {
this->reserve(this->size() + src.size()); /* Prepend a duplicate of src before this. Start by inserting a bunch of NULLs (so we only have to reallocate once) and then replace them. */
this->insert(this->begin(), src.size(), NULL);
for (size_t idx = 0; idx < src.size(); idx++) for (size_t idx = 0; idx < src.size(); idx++)
{ {
const io_data_t *src_data = src.at(idx); const io_data_t *src_data = src.at(idx);
this->push_back(new io_data_t(*src_data)); this->at(idx) = new io_data_t(*src_data);
} }
} }
@ -241,9 +242,9 @@ void io_print(const io_chain_t &chain)
} }
} }
void io_duplicate_append( const io_chain_t &src, io_chain_t &dst ) void io_duplicate_prepend( const io_chain_t &src, io_chain_t &dst )
{ {
return dst.duplicate_append(src); return dst.duplicate_prepend(src);
} }
void io_chain_destroy(io_chain_t &chain) void io_chain_destroy(io_chain_t &chain)

7
io.h
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@ -124,13 +124,12 @@ public:
void remove(const io_data_t *element); void remove(const io_data_t *element);
io_chain_t duplicate() const; io_chain_t duplicate() const;
void duplicate_append(const io_chain_t &src); void duplicate_prepend(const io_chain_t &src);
void destroy(); void destroy();
const io_data_t *get_io_for_fd(int fd) const; const io_data_t *get_io_for_fd(int fd) const;
io_data_t *get_io_for_fd(int fd); io_data_t *get_io_for_fd(int fd);
}; };
/** /**
@ -144,8 +143,8 @@ io_chain_t io_duplicate(const io_chain_t &chain);
/** Return a shallow copy of the specified chain of redirections that contains only the applicable redirections. That is, if there's multiple redirections for the same fd, only the second one is included. */ /** Return a shallow copy of the specified chain of redirections that contains only the applicable redirections. That is, if there's multiple redirections for the same fd, only the second one is included. */
io_chain_t io_unique(const io_chain_t &chain); io_chain_t io_unique(const io_chain_t &chain);
/** Appends a copy of the specified 'src' chain of redirections to 'dst.' Uses operator new. */ /** Prepends a copy of the specified 'src' chain of redirections to 'dst.' Uses operator new. */
void io_duplicate_append( const io_chain_t &src, io_chain_t &dst ); void io_duplicate_prepend( const io_chain_t &src, io_chain_t &dst );
/** Destroys an io_chain */ /** Destroys an io_chain */
void io_chain_destroy(io_chain_t &chain); void io_chain_destroy(io_chain_t &chain);