| 1 | ## oils_failures_allowed: 3
|
| 2 | ## compare_shells: dash bash mksh
|
| 3 |
|
| 4 | # Job control constructs:
|
| 5 | # & terminator (instead of ;)
|
| 6 | # $! -- last PID
|
| 7 | # wait builtin (wait -n waits for next)
|
| 8 | #
|
| 9 | # Only interactive:
|
| 10 | # fg
|
| 11 | # bg
|
| 12 | # %1 -- current job
|
| 13 |
|
| 14 | #### wait with nothing to wait for
|
| 15 | wait
|
| 16 | ## status: 0
|
| 17 |
|
| 18 | #### wait -n with arguments - arguments are respected
|
| 19 | case $SH in dash|mksh) exit ;; esac
|
| 20 |
|
| 21 | echo x &
|
| 22 |
|
| 23 | # here, you can't tell if it's -n or the other
|
| 24 | wait -n $!
|
| 25 | echo status=$?
|
| 26 |
|
| 27 | # by the bash error, you can tell which is preferred
|
| 28 | wait -n $! bad 2>err.txt
|
| 29 | echo status=$?
|
| 30 | echo
|
| 31 |
|
| 32 | n=$(wc -l < err.txt)
|
| 33 | if test "$n" -gt 0; then
|
| 34 | echo 'got error lines'
|
| 35 | fi
|
| 36 |
|
| 37 | ## STDOUT:
|
| 38 | x
|
| 39 | status=0
|
| 40 | status=127
|
| 41 |
|
| 42 | got error lines
|
| 43 | ## END
|
| 44 | ## N-I dash/mksh STDOUT:
|
| 45 | ## END
|
| 46 |
|
| 47 | #### wait -n with nothing to wait for
|
| 48 | # The 127 is STILL overloaded. Copying bash for now.
|
| 49 | wait -n
|
| 50 | ## status: 127
|
| 51 | ## N-I dash status: 2
|
| 52 | ## N-I mksh status: 1
|
| 53 |
|
| 54 | #### wait with jobspec syntax %nonexistent
|
| 55 | wait %nonexistent
|
| 56 | ## status: 127
|
| 57 | ## OK dash status: 2
|
| 58 |
|
| 59 | #### wait with invalid PID
|
| 60 | wait 12345678
|
| 61 | ## status: 127
|
| 62 |
|
| 63 | #### wait with invalid arg
|
| 64 | wait zzz
|
| 65 | ## status: 2
|
| 66 | ## OK bash status: 1
|
| 67 | # mksh confuses a syntax error with 'command not found'!
|
| 68 | ## BUG mksh status: 127
|
| 69 |
|
| 70 | #### wait for N parallel jobs
|
| 71 |
|
| 72 | for i in 3 2 1; do
|
| 73 | { sleep 0.0$i; exit $i; } &
|
| 74 | done
|
| 75 | wait
|
| 76 |
|
| 77 | # status is lost
|
| 78 | echo status=$?
|
| 79 |
|
| 80 | ## STDOUT:
|
| 81 | status=0
|
| 82 | ## END
|
| 83 |
|
| 84 | #### wait for N parallel jobs and check failure
|
| 85 |
|
| 86 | set -o errexit
|
| 87 |
|
| 88 | pids=''
|
| 89 | for i in 3 2 1; do
|
| 90 | { sleep 0.0$i; echo $i; exit $i; } &
|
| 91 | pids="$pids $!"
|
| 92 | done
|
| 93 |
|
| 94 | for pid in $pids; do
|
| 95 | set +o errexit
|
| 96 | wait $pid
|
| 97 | status=$?
|
| 98 | set -o errexit
|
| 99 |
|
| 100 | echo status=$status
|
| 101 | done
|
| 102 |
|
| 103 | ## STDOUT:
|
| 104 | 1
|
| 105 | 2
|
| 106 | 3
|
| 107 | status=3
|
| 108 | status=2
|
| 109 | status=1
|
| 110 | ## END
|
| 111 |
|
| 112 | #### Builtin in background
|
| 113 | echo async &
|
| 114 | wait
|
| 115 | ## stdout: async
|
| 116 |
|
| 117 | #### External command in background
|
| 118 | sleep 0.01 &
|
| 119 | wait
|
| 120 | ## stdout-json: ""
|
| 121 |
|
| 122 | #### Start background pipeline, wait $pid
|
| 123 | echo hi | { exit 99; } &
|
| 124 | echo status=$?
|
| 125 | wait $!
|
| 126 | echo status=$?
|
| 127 | echo --
|
| 128 |
|
| 129 | pids=''
|
| 130 | for i in 3 2 1; do
|
| 131 | sleep 0.0$i | echo i=$i | ( exit $i ) &
|
| 132 | pids="$pids $!"
|
| 133 | done
|
| 134 | #echo "PIDS $pids"
|
| 135 |
|
| 136 | for pid in $pids; do
|
| 137 | wait $pid
|
| 138 | echo status=$?
|
| 139 | done
|
| 140 |
|
| 141 | # Not cleaned up
|
| 142 | if false; then
|
| 143 | echo 'DEBUG'
|
| 144 | jobs --debug
|
| 145 | fi
|
| 146 |
|
| 147 | ## STDOUT:
|
| 148 | status=0
|
| 149 | status=99
|
| 150 | --
|
| 151 | status=3
|
| 152 | status=2
|
| 153 | status=1
|
| 154 | ## END
|
| 155 |
|
| 156 | #### Start background pipeline, wait %job_spec
|
| 157 | echo hi | { exit 99; } &
|
| 158 | echo status=$?
|
| 159 | wait %1
|
| 160 | echo status=$?
|
| 161 | ## STDOUT:
|
| 162 | status=0
|
| 163 | status=99
|
| 164 | ## END
|
| 165 |
|
| 166 | #### Wait for job and PIPESTATUS
|
| 167 |
|
| 168 | # foreground
|
| 169 | { echo hi; exit 55; } | false
|
| 170 | echo fore status=$? pipestatus=${PIPESTATUS[@]}
|
| 171 |
|
| 172 | # background
|
| 173 | { echo hi; exit 44; } | false &
|
| 174 | echo back status=$? pipestatus=${PIPESTATUS[@]}
|
| 175 |
|
| 176 | # wait for pipeline
|
| 177 | wait %+
|
| 178 | #wait %1
|
| 179 | #wait $!
|
| 180 | echo wait status=$? pipestatus=${PIPESTATUS[@]}
|
| 181 |
|
| 182 | ## STDOUT:
|
| 183 | fore status=1 pipestatus=55 1
|
| 184 | back status=0 pipestatus=0
|
| 185 | wait status=1 pipestatus=1
|
| 186 | ## END
|
| 187 | ## N-I dash status: 2
|
| 188 | ## N-I dash STDOUT:
|
| 189 | ## END
|
| 190 |
|
| 191 | #### Wait for job and PIPESTATUS - cat
|
| 192 |
|
| 193 | # foreground
|
| 194 | exit 55 | ( cat; exit 99 )
|
| 195 | echo fore status=$? pipestatus=${PIPESTATUS[@]}
|
| 196 |
|
| 197 | # background
|
| 198 | exit 44 | ( cat; exit 88 ) &
|
| 199 | echo back status=$? pipestatus=${PIPESTATUS[@]}
|
| 200 |
|
| 201 | # wait for pipeline
|
| 202 | wait %+
|
| 203 | #wait %1
|
| 204 | #wait $!
|
| 205 | echo wait status=$? pipestatus=${PIPESTATUS[@]}
|
| 206 | echo
|
| 207 |
|
| 208 | # wait for non-pipeline
|
| 209 | ( exit 77 ) &
|
| 210 | wait %+
|
| 211 | echo wait status=$? pipestatus=${PIPESTATUS[@]}
|
| 212 |
|
| 213 | ## STDOUT:
|
| 214 | fore status=99 pipestatus=55 99
|
| 215 | back status=0 pipestatus=0
|
| 216 | wait status=88 pipestatus=88
|
| 217 |
|
| 218 | wait status=77 pipestatus=77
|
| 219 | ## END
|
| 220 | ## N-I dash status: 2
|
| 221 | ## N-I dash STDOUT:
|
| 222 | ## END
|
| 223 |
|
| 224 | #### Brace group in background, wait all
|
| 225 | { sleep 0.09; exit 9; } &
|
| 226 | { sleep 0.07; exit 7; } &
|
| 227 | wait # wait for all gives 0
|
| 228 | echo "status=$?"
|
| 229 | ## stdout: status=0
|
| 230 |
|
| 231 | #### Wait on background process PID
|
| 232 | { sleep 0.09; exit 9; } &
|
| 233 | pid1=$!
|
| 234 | { sleep 0.07; exit 7; } &
|
| 235 | pid2=$!
|
| 236 | wait $pid2
|
| 237 | echo "status=$?"
|
| 238 | wait $pid1
|
| 239 | echo "status=$?"
|
| 240 | ## STDOUT:
|
| 241 | status=7
|
| 242 | status=9
|
| 243 | ## END
|
| 244 |
|
| 245 | #### Wait on multiple specific IDs returns last status
|
| 246 | { sleep 0.08; exit 8; } &
|
| 247 | jid1=$!
|
| 248 | { sleep 0.09; exit 9; } &
|
| 249 | jid2=$!
|
| 250 | { sleep 0.07; exit 7; } &
|
| 251 | jid3=$!
|
| 252 | wait $jid1 $jid2 $jid3 # NOTE: not using %1 %2 %3 syntax on purpose
|
| 253 | echo "status=$?" # third job I think
|
| 254 | ## stdout: status=7
|
| 255 |
|
| 256 | #### wait -n
|
| 257 | case $SH in (dash|mksh) return ;; esac
|
| 258 |
|
| 259 | { sleep 0.09; exit 9; } &
|
| 260 | { sleep 0.03; exit 3; } &
|
| 261 | wait -n
|
| 262 | echo "status=$?"
|
| 263 | wait -n
|
| 264 | echo "status=$?"
|
| 265 | ## STDOUT:
|
| 266 | status=3
|
| 267 | status=9
|
| 268 | ## END
|
| 269 | ## N-I dash/mksh stdout-json: ""
|
| 270 |
|
| 271 | #### Async for loop
|
| 272 | for i in 1 2 3; do
|
| 273 | echo $i
|
| 274 | sleep 0.0$i
|
| 275 | done &
|
| 276 | wait
|
| 277 | ## STDOUT:
|
| 278 | 1
|
| 279 | 2
|
| 280 | 3
|
| 281 | ## END
|
| 282 | ## status: 0
|
| 283 |
|
| 284 | #### Background process doesn't affect parent
|
| 285 | echo ${foo=1}
|
| 286 | echo $foo
|
| 287 | echo ${bar=2} &
|
| 288 | wait
|
| 289 | echo $bar # bar is NOT SET in the parent process
|
| 290 | ## STDOUT:
|
| 291 | 1
|
| 292 | 1
|
| 293 | 2
|
| 294 |
|
| 295 | ## END
|
| 296 |
|
| 297 | #### Background process and then a singleton pipeline
|
| 298 |
|
| 299 | # This was inspired by #416, although that symptom there was timing, so it's
|
| 300 | # technically not a regression test. It's hard to test timing.
|
| 301 |
|
| 302 | { sleep 0.1; exit 42; } &
|
| 303 | echo begin
|
| 304 | ! true
|
| 305 | echo end
|
| 306 | wait $!
|
| 307 | echo status=$?
|
| 308 | ## STDOUT:
|
| 309 | begin
|
| 310 | end
|
| 311 | status=42
|
| 312 | ## END
|
| 313 |
|
| 314 | #### jobs prints one line per job
|
| 315 | sleep 0.1 &
|
| 316 | sleep 0.1 | cat &
|
| 317 |
|
| 318 | # dash doesn't print if it's not a terminal?
|
| 319 | jobs | wc -l
|
| 320 |
|
| 321 | ## STDOUT:
|
| 322 | 2
|
| 323 | ## END
|
| 324 | ## BUG dash STDOUT:
|
| 325 | 0
|
| 326 | ## END
|
| 327 |
|
| 328 | #### jobs -p prints one line per job
|
| 329 | sleep 0.1 &
|
| 330 | sleep 0.1 | cat &
|
| 331 |
|
| 332 | jobs -p > tmp.txt
|
| 333 |
|
| 334 | cat tmp.txt | wc -l # 2 lines, one for each job
|
| 335 | cat tmp.txt | wc -w # each line is a single "word"
|
| 336 |
|
| 337 | ## STDOUT:
|
| 338 | 2
|
| 339 | 2
|
| 340 | ## END
|
| 341 |
|
| 342 |
|
| 343 | #### No stderr spew when shell is not interactive
|
| 344 |
|
| 345 | # in interactive shell, this prints 'Process' or 'Pipeline'
|
| 346 | sleep 0.01 &
|
| 347 | sleep 0.01 | cat &
|
| 348 | wait
|
| 349 |
|
| 350 | ## STDOUT:
|
| 351 | ## END
|
| 352 | ## STDERR:
|
| 353 | ## END
|
| 354 |
|
| 355 |
|
| 356 | #### YSH wait --all
|
| 357 | case $SH in dash|bash|mksh) exit ;; esac
|
| 358 |
|
| 359 | sleep 0.01 &
|
| 360 | (exit 55) &
|
| 361 | true &
|
| 362 | wait
|
| 363 | echo wait $?
|
| 364 |
|
| 365 | sleep 0.01 &
|
| 366 | (exit 44) &
|
| 367 | true &
|
| 368 | wait --all
|
| 369 | echo wait --all $?
|
| 370 |
|
| 371 | ## STDOUT:
|
| 372 | wait 0
|
| 373 | wait --all 1
|
| 374 | ## END
|
| 375 |
|
| 376 | ## N-I dash/bash/mksh STDOUT:
|
| 377 | ## END
|
| 378 |
|
| 379 | #### YSH wait --verbose
|
| 380 | case $SH in dash|bash|mksh) exit ;; esac
|
| 381 |
|
| 382 | sleep 0.01 &
|
| 383 | (exit 55) &
|
| 384 | wait --verbose
|
| 385 | echo wait $?
|
| 386 |
|
| 387 | (exit 44) &
|
| 388 | sleep 0.01 &
|
| 389 | wait --all --verbose
|
| 390 | echo wait --all $?
|
| 391 |
|
| 392 | ## STDOUT:
|
| 393 | wait 0
|
| 394 | wait --all 1
|
| 395 | ## END
|
| 396 |
|
| 397 | ## N-I dash/bash/mksh STDOUT:
|
| 398 | ## END
|