feat: Add command to list and inspect queues
This commit is contained in:
Vincent Ambo
Karl Erik Asbjørnsen
parent
0e6d521ae0
commit
10dcab6365
4 changed files with 252 additions and 0 deletions
4
.gitignore
vendored
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4
.gitignore
vendored
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@ -0,0 +1,4 @@
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/target/
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**/*.rs.bk
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.idea/
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*.iml
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176
Cargo.lock
generated
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176
Cargo.lock
generated
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@ -0,0 +1,176 @@
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[root]
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name = "mq"
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version = "0.1.0"
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dependencies = [
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"clap 2.26.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"posix_mq 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "ansi_term"
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version = "0.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "atty"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
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"termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "bitflags"
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version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "cfg-if"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "clap"
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version = "2.26.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"atty 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"term_size 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"textwrap 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "kernel32-sys"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "libc"
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version = "0.2.32"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "nix"
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version = "0.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
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"void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "posix_mq"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
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"nix 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "redox_syscall"
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version = "0.1.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "redox_termios"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "strsim"
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version = "0.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "term_size"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "termion"
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version = "1.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "textwrap"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"term_size 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "unicode-width"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "vec_map"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "void"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi-build"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
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"checksum atty 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "21e50800ec991574876040fff8ee46b136a53e985286fbe6a3bdfe6421b78860"
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"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
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"checksum cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
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"checksum clap 2.26.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3451e409013178663435d6f15fdb212f14ee4424a3d74f979d081d0a66b6f1f2"
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"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
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"checksum libc 0.2.32 (registry+https://github.com/rust-lang/crates.io-index)" = "56cce3130fd040c28df6f495c8492e5ec5808fb4c9093c310df02b0c8f030148"
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"checksum nix 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a2c5afeb0198ec7be8569d666644b574345aad2e95a53baf3a532da3e0f3fb32"
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"checksum posix_mq 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2ab51dbacda5aa610638256f89eb913747cc4156113f0a4df8619ae05d7549f5"
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"checksum redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "8dde11f18c108289bef24469638a04dce49da56084f2d50618b226e47eb04509"
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"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
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"checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
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"checksum term_size 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2b6b55df3198cc93372e85dd2ed817f0e38ce8cc0f22eb32391bfad9c4bf209"
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"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
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"checksum textwrap 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df8e08afc40ae3459e4838f303e465aa50d823df8d7f83ca88108f6d3afe7edd"
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"checksum unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3a113775714a22dcb774d8ea3655c53a32debae63a063acc00a91cc586245f"
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"checksum vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "887b5b631c2ad01628bbbaa7dd4c869f80d3186688f8d0b6f58774fbe324988c"
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"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
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"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
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"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
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8
Cargo.toml
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8
Cargo.toml
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@ -0,0 +1,8 @@
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[package]
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name = "mq"
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version = "0.1.0"
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authors = ["Vincent Ambo <tazjin@gmail.com>"]
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[dependencies]
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posix_mq = "0.1.1"
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clap = "2.26.2"
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64
src/main.rs
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64
src/main.rs
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extern crate clap;
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extern crate posix_mq;
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use clap::{App, SubCommand, Arg, AppSettings};
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use posix_mq::{Name, Queue};
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fn run_ls() {
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use std::fs::{read_dir, File};
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use std::io::Read;
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let mqueues = read_dir("/dev/mqueue")
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.expect("Could not read message queues");
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mqueues.for_each(|queue| {
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//let queue_name = (&queue.unwrap().file_name()).into_string().unwrap();
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let path = queue.unwrap().path();
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let status = {
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let mut file = File::open(&path)
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.expect("Could not open queue file");
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let mut content = String::new();
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file.read_to_string(&mut content).expect("Could not read queue file");
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content
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};
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let queue_name = path.components().last().unwrap().as_os_str();
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println!("{:?}: {}", queue_name, status)
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});
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}
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fn run_inspect(queue_name: &str) {
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let name = Name::new(queue_name).expect("Invalid queue name");
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let queue = Queue::open(name).expect("Could not open queue");
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println!("Queue {}:\n", queue_name);
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println!("Max. message size: {} bytes", queue.max_size());
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println!("Max. # of pending messages: {}", queue.max_pending());
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}
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fn main() {
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let ls = SubCommand::with_name("ls").about("list message queues");
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let inspect = SubCommand::with_name("inspect")
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.about("inspect details about a queue")
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.arg(Arg::with_name("queue")
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.short("q")
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.required(true)
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.takes_value(true));
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let matches = App::new("mq")
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.setting(AppSettings::SubcommandRequiredElseHelp)
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.version("0.0.1")
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.about("Administrate and inspect POSIX message queues")
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.subcommand(ls)
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.subcommand(inspect)
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.get_matches();
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match matches.subcommand() {
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("ls", _) => run_ls(),
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("inspect", Some(cmd)) => run_inspect(cmd.value_of("queue").unwrap()),
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_ => unimplemented!(),
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}
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}
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