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authorHiltjo Posthuma <hiltjo@codemadness.org>2023-03-08 21:20:52 +0100
committerHiltjo Posthuma <hiltjo@codemadness.org>2023-03-08 21:28:51 +0100
commitdfbbf7f6e1b22ccf9e5a45d77ee10995577fb4fc (patch)
treefc6aeadab9feb3ab590f81565e7005dd22bb52ef /stest.c%252525252525252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%25252525252525252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%2525252525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525252525253d7ec32fe4944d4f7137cf2a23366324ffe0f10a70%25252525252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525252525253d7ec32fe4944d4f7137cf2a23366324ffe0f10a70%252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb%2525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb&id2%2525252525252525252525252525252525252525252525252525252525252525253d1e8c5b68f4881bd4ae257c780fd41f129c79f419%25252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb&id2%25252525252525252525252525252525252525252525252525252525252525253d1e8c5b68f4881bd4ae257c780fd41f129c79f419%2525252525252525252525252525252525252525252525252525252525253fshowmsg%2525252525252525252525252525252525252525252525252525252525253d1%252525252525252525252525252525252525252525252525252525253fid2%252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525252525253fid2%2525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%25252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8&id2%2525252525252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%25252525252525252525252525252525252525253fid%25252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525253fid%252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525252525252525252525253fid%2525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525252525252525252525252525253fid%25252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%252525252525252525252525252525253fid%252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%25252525252525252525253fid%25252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%252525252525252525253fid%252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67&id2%252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525253fid%2525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67&id2%2525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525252525253fid%25252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%252525252525253fid%252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525253fid%2525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525253fid%25252525253dafc0e284bea212fcdc852c665583e73240d638a8&id2%25252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%252525253fid%252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525253fid%2525253dafc0e284bea212fcdc852c665583e73240d638a8%25253fid%25253dafc0e284bea212fcdc852c665583e73240d638a8&id2%25253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1?id=dfbbf7f6e1b22ccf9e5a45d77ee10995577fb4fc
parentba1a347dcaba055f824161007dfee60db3ea785b (diff)
readstdin: reduce memory-usage by duplicating the line from getline()
Improves upon commit 32db2b125190d366be472ccb7cad833248696144 The getline() implementation often uses a more greedy way of allocating memory. Using this buffer directly and forcing an allocation (by setting it to NULL) would waste a bit of extra space, depending on the implementation of course. Tested on musl libc and glibc. The current glibc version allocates a minimum of 120 bytes per line. For smaller lines musl libc seems less wasteful but still wastes a few bytes per line. On a dmenu_path listing on my system the memory usage was about 350kb (old) vs 30kb (new) on Void Linux glibc. Side-note that getline() also reads NUL bytes in lines, while strdup() would read until the NUL byte. Since dmenu reads text lines either is probably fine(tm). Also rename junk to linesiz.
Diffstat (limited to 'stest.c%252525252525252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%25252525252525252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%2525252525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525252525253d7ec32fe4944d4f7137cf2a23366324ffe0f10a70%25252525252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525252525253d7ec32fe4944d4f7137cf2a23366324ffe0f10a70%252525252525252525252525252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb%2525252525252525252525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb&id2%2525252525252525252525252525252525252525252525252525252525252525253d1e8c5b68f4881bd4ae257c780fd41f129c79f419%25252525252525252525252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525252525252525252525253dfce06f437dcec646ee0a2728fe695f3084cc6ccb&id2%25252525252525252525252525252525252525252525252525252525252525253d1e8c5b68f4881bd4ae257c780fd41f129c79f419%2525252525252525252525252525252525252525252525252525252525253fshowmsg%2525252525252525252525252525252525252525252525252525252525253d1%252525252525252525252525252525252525252525252525252525253fid2%252525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525252525253fid2%2525252525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%25252525252525252525252525252525252525252525253fid%25252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525252525253fid%252525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525252525252525252525252525253fid%2525252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8&id2%2525252525252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%25252525252525252525252525252525252525253fid%25252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%252525252525252525252525252525252525253fid%252525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525252525252525252525253fid%2525252525252525252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525252525252525252525252525253fid%25252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%252525252525252525252525252525253fid%252525252525252525252525252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%25252525252525252525253fid%25252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%252525252525252525253fid%252525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67&id2%252525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525252525252525253fid%2525252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67&id2%2525252525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525252525253fid%25252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%252525252525253fid%252525252525253d5773a77780fee2424ad561c1c83136f45e2b1a67%2525252525253fid%2525252525253dafc0e284bea212fcdc852c665583e73240d638a8%25252525253fid%25252525253dafc0e284bea212fcdc852c665583e73240d638a8&id2%25252525253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1%252525253fid%252525253dafc0e284bea212fcdc852c665583e73240d638a8%2525253fid%2525253dafc0e284bea212fcdc852c665583e73240d638a8%25253fid%25253dafc0e284bea212fcdc852c665583e73240d638a8&id2%25253d1d2b462acf1210b8f86966b8dd9bb6e36e369ee1?id=dfbbf7f6e1b22ccf9e5a45d77ee10995577fb4fc')
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